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Guam🇬🇺 | beachesGun BeachRusting WWII gun, Tumon Bay reef flat, west sunsets, resort strip | things to do and best time to go

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Backpacking in Gun Beach
🏆 Top pickbeach ranked #1
By Johan Kruseman 🇳🇱 | Updated October 15, 2026

The gun that gave Gun Beach its name is a rusting Japanese coastal defense gun left from World War II, and you can walk right up to it. The beach sits at the north end of Tumon Bay on Guam’s west coast, a short ride up the coast from the capital, Hagåtña. Expect a small pocket of pale sand, a shallow reef flat and resort towers close behind you. Crowds stay thin until late morning, so go early and have the water almost to yourself. Swimming is calm inside the reef, though the shallows get thin at low tide and are better for wading and snorkeling than for laps. Cleanliness is good, since the resorts rake the sand. Budget food means walking south into Tumon, where convenience stores and cheap lunch counters wait. Beds are mostly resort priced, so most backpackers stay elsewhere. Finish at the gun at dusk, when the sun drops straight into the sea behind its barrel.

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✨ Why go?
Ranked #1 beach in Guam
What sets this place apart

Most backpackers stop here because it is the quietest end of Tumon Bay, and it gives them a swim without the crowds of the main strip. The Japanese coastal gun on the sand adds a bit of history to a beach day, and it costs nothing to see. The reef flat keeps the water calm and clear enough that you can snorkel after a short wade, with small reef fish and the occasional sea cucumber on the bottom. Since the bay is a protected marine preserve, the fish are bolder than at most fished spots. The other draw is location. Gun Beach sits right beside Two Lovers Point on the cliff above Tumon, so you can pair a morning in the water with a lookout stop on the same stretch of coast. You also get the convenience of Tumon without paying resort rates for sand. Pick up a snack in town, carry it up, and settle … read more 👉
Most backpackers stop here because it is the quietest end of Tumon Bay, and it gives them a swim without the crowds of the main strip. The Japanese coastal gun on the sand adds a bit of history to a beach day, and it costs nothing to see. The reef flat keeps the water calm and clear enough that you can snorkel after a short wade, with small reef fish and the occasional sea cucumber on the bottom. Since the bay is a protected marine preserve, the fish are bolder than at most fished spots. The other draw is location. Gun Beach sits right beside Two Lovers Point on the cliff above Tumon, so you can pair a morning in the water with a lookout stop on the same stretch of coast. You also get the convenience of Tumon without paying resort rates for sand. Pick up a snack in town, carry it up, and settle in for the sunset, which is the best free show on the island.

💡 HighlightsTop highlights of Gun Beach

  1. The Japanese coastal gun. This is why the beach has its name. A World War II Japanese gun emplacement sits on the sand, weathered and rust-brown, and you can stand beside the barrel for a photo. It is a quick stop, but it gives the beach a story that Tumon’s other sands lack.
  2. Snorkeling the reef flat. Wade out over the shallow reef and float over coral heads, where small reef fish dart in and out. Because Tumon Bay is a marine preserve, the fish here are used to swimmers, which makes the water good for beginners. Go at higher tide, since low water leaves little room above the coral.
  3. Sunset at the water’s edge. Gun Beach faces west, so the sun sets straight into the Philippine Sea with nothing blocking it. Bring a cold drink from a store in Tumon, sit on the sand and watch the sky go orange behind
… read more 👉
  1. The Japanese coastal gun. This is why the beach has its name. A World War II Japanese gun emplacement sits on the sand, weathered and rust-brown, and you can stand beside the barrel for a photo. It is a quick stop, but it gives the beach a story that Tumon’s other sands lack.
  2. Snorkeling the reef flat. Wade out over the shallow reef and float over coral heads, where small reef fish dart in and out. Because Tumon Bay is a marine preserve, the fish here are used to swimmers, which makes the water good for beginners. Go at higher tide, since low water leaves little room above the coral.
  3. Sunset at the water’s edge. Gun Beach faces west, so the sun sets straight into the Philippine Sea with nothing blocking it. Bring a cold drink from a store in Tumon, sit on the sand and watch the sky go orange behind the resort palms. The crowd is small, and the light on the reef flat is soft.
  4. Two Lovers Point. This sheer limestone cliff stands just north and looks down over the whole curve of Tumon Bay. The legend tells of two lovers who tied their hair together and leapt, and you can read it on site. The lookout is easy to reach from the beach by car or taxi, and the view of turquoise water against the cliff is worth the short detour. Late afternoon gives the best light, and entry is charged at the gate.
  5. A walk along Tumon Bay. From the gun, follow the sand and the beachfront path south past the resorts, with the water on your right. You pass swimmers, paddleboarders and parasailing boats, then reach the shops and restaurants of Tumon, where you can find a cheap meal or a drink once the sun is down. At night the strip turns into a lively, well-lit promenade, safe enough for an easy stroll back along the water.
Start with the snorkel in the morning, when the tide is higher and the water is still glassy, and save the gun and the sunset for the end of the day.
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Things to do around Gun Beach

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🌤️ When to go?Weather, crowds, and seasonal trade-offs

The best window for Gun Beach is December through May, when rain is lightest and the Tumon Bay water is calmest and clearest.
  • Dry Season (December to May): Days run 27 to 31°C (81 to 88°F) with a steady trade breeze and little rain. Sunrise is around 6:15 am and sunset near 6:00 pm in winter, stretching to about 6:30 pm by May. Visibility for snorkeling is at its best.
  • Rainy Season (July to November): Expect 28 to 32°C (82 to 90°F), heavy humidity and afternoon downpours that usually pass within an hour. Typhoons are most likely from August to November, and surf advisories can close swimming for days. Hotel rates in Tumon dip noticeably.
  • Holiday Peaks: Japanese Golden Week in late April and early May, plus Christmas and New Year, fill the nearby resorts and raise room rates. The beach itself
… read more 👉
The best window for Gun Beach is December through May, when rain is lightest and the Tumon Bay water is calmest and clearest.
  • Dry Season (December to May): Days run 27 to 31°C (81 to 88°F) with a steady trade breeze and little rain. Sunrise is around 6:15 am and sunset near 6:00 pm in winter, stretching to about 6:30 pm by May. Visibility for snorkeling is at its best.
  • Rainy Season (July to November): Expect 28 to 32°C (82 to 90°F), heavy humidity and afternoon downpours that usually pass within an hour. Typhoons are most likely from August to November, and surf advisories can close swimming for days. Hotel rates in Tumon dip noticeably.
  • Holiday Peaks: Japanese Golden Week in late April and early May, plus Christmas and New Year, fill the nearby resorts and raise room rates. The beach itself stays uncrowded because it sits at the quiet northern end of Tumon.
  • Weekends: Local families claim the shaded picnic spots on Saturdays and Sundays.
Go on a weekday morning in February or March for the calmest water and the emptiest sand.


source: climatestotravel.comJANJanuary: excellent for travelingFEBFebruary: highly recommended for travelingMARMarch: highly recommended for travelingAPRApril: highly recommended for travelingMAYMay: excellent for travelingJUNJune: fair for travelingJULJuly: fair for travelingAUGAugust: fair for travelingSEPSeptember: below average for travelingOCTOctober: below average for travelingNOVNovember: fair for travelingDECDecember: good for traveling
guam-beach-gun-beach
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🛏️ Where to stay?Where staying makes the most sense

Tumon is where you should stay, since Gun Beach sits at the northern tip of the Tumon Bay strip and everything else you need is within a short walk or bus ride.
Tumon has the island's densest cluster of budget beds, mostly dorm-style hostels and small guesthouses a few blocks back from the water. Expect roughly US$30 to 50 for a dorm bed and US$70 to 120 for a private room, with prices climbing near holidays. The southern end of Tumon, around the Pleasure Island and Pale San Vitores Road area, is the most social. Restaurants, convenience stores, ABC-style grocery runs and late-night food are all … read more 👉
Tumon is where you should stay, since Gun Beach sits at the northern tip of the Tumon Bay strip and everything else you need is within a short walk or bus ride.
Tumon has the island's densest cluster of budget beds, mostly dorm-style hostels and small guesthouses a few blocks back from the water. Expect roughly US$30 to 50 for a dorm bed and US$70 to 120 for a private room, with prices climbing near holidays. The southern end of Tumon, around the Pleasure Island and Pale San Vitores Road area, is the most social. Restaurants, convenience stores, ABC-style grocery runs and late-night food are all within a few minutes on foot, and other solo travelers gather there in the evenings. The trade-off is noise from bars and traffic on weekends.
The quieter northern stretch toward Gun Beach is better if you want sleep, ocean views and an easy morning swim. Beds here are fewer and a little pricier, but the beach is a 5 to 10 minute walk. The area is flat and well lit, with sidewalks along Pale San Vitores Road.
Harmon, just inland and a short bus or taxi ride away, offers cheaper apartment-style rooms and long-stay deals if you plan to stay a week or more. You will want the red Tumon tourist shuttle, a rental car or taxis there. For a first visit, stay in central Tumon.

🛡️ SafetySafety Tips and Common Scams in Gun Beach

Gun Beach is a calm, easygoing spot inside the protected Tumon Bay, and most visitors swim here without any trouble.
The reef flat shelters the shore, so waves are small and rips are rare during the dry months. Between July and November, swell and typhoon surf can push stronger currents through the reef channels, so watch the flags and listen to lifeguards or hotel staff before going in. Tides matter: at low tide the shallows get thin and the reef edge is sharp, so wear reef shoes and avoid standing on coral. Sea urchins and the occasional jellyfish are the main nuisances, and sharks are not a concern here.
The sun is strong all year, and shade is limited except under the trees by the picnic area. Put on reef-safe sunscreen and drink plenty of water.
Petty theft from parked cars and unattended … read more 👉
Gun Beach is a calm, easygoing spot inside the protected Tumon Bay, and most visitors swim here without any trouble.
The reef flat shelters the shore, so waves are small and rips are rare during the dry months. Between July and November, swell and typhoon surf can push stronger currents through the reef channels, so watch the flags and listen to lifeguards or hotel staff before going in. Tides matter: at low tide the shallows get thin and the reef edge is sharp, so wear reef shoes and avoid standing on coral. Sea urchins and the occasional jellyfish are the main nuisances, and sharks are not a concern here.
The sun is strong all year, and shade is limited except under the trees by the picnic area. Put on reef-safe sunscreen and drink plenty of water.
Petty theft from parked cars and unattended bags does happen around Tumon. Leave nothing visible in a rental car, and keep valuables with you when you swim.

FAQCommon questions from travelers

Gun Beach is reached by road from the Tumon hotel strip, about 15 minutes by car from Antonio B. Won Pat International Airport and roughly 20 minutes from Hagåtña. The red Tumon tourist shuttle and local buses serve Tumon, and taxis from the airport cost around US$25 to 35. From the northern end of the Tumon hotels it is a 5 to 10 minute walk. A rental car helps if you also plan to explore the north or south of the island.
Swimming is the main draw, since the sheltered reef flat keeps the water calm and clear from December to May. Snorkeling is decent along the rocky edges, where small reef fish and sea urchins live, though the central Tumon Bay reef and Ypao Beach are better known. Surfing is not practical here because the reef blocks the swell, so surfers head to the outer reef breaks when conditions allow. Bring reef shoes and a mask, and avoid swimming during typhoon-season surf advisories.
Yes, the beach is free, with no entry fee and open public access year-round. Parking nearby is generally free or low-cost, though lots at neighboring hotels may be restricted to guests. A day on the sand costs nothing, but shower access, snorkel gear rental and food nearby will add roughly US$10 to 30. Weekends are busier when local families use the picnic area.
⚠️ Things can change over time, so always validate details locally before you go.

Other Guamanian beaches near Gun Beach

Explore more nearby:

  • Fai Fai Beach—Low-tide rock trail, small west-facing cove, reef-edge snorkeling, no facilities| 1 km away
  • Asan Beach—Grassy shore, 1944 landing site, memorial wall, weekend picnics| 12 km away
  • Ritidian Point—Refuge crescent, white cliffs, latte stones, turtle tracks| 16 km away

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We 💚 feedbackWhat to keep in mind

Most travelers show up at midday, find the reef flat too shallow to swim and leave disappointed. Get it right by timing your visit for a higher tide and going early, with your own mask and a pair of reef shoes, because the coral edge is sharp. Then walk to Two Lovers Point, and come back at dusk for the gun in good light.

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The information on this page is based on in-depth research, insights shared by experienced travelers, and feedback from the local travel community in Guam. While every effort is made to keep the information accurate and current, conditions can change — so if you spot anything incorrect or outdated, please get in touch.



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