Vietnam🇻🇳 | beachesCat Ba Islandlimestone cliffs, sheltered coves, national park | things to do and best time to go

Your flip-flops are in your hand, your feet are in the sand, and your backpack is inexplicably full of sand, even though you just put it down for thirty seconds. The water at Cat Ba Island beach is warm enough that you walk straight in without the dramatic toe-test, while karaoke from a nearby seafront bar drifts over the small bay. This is Cat Ba Island, sitting in Lan Ha Bay off northern Vietnam, the scruffier cousin of Ha Long’s cruise circus. For backpackers, it’s easy to reach, cheap to sleep, and the little town behind the sand is stacked with budget guesthouses and bia hoi joints. The beaches themselves are small, semi-clean rather than pristine, and can feel crowded in Vietnamese holiday season, but the limestone cliffs and island-dotted horizon absolutely carry the mood. Swimming is mellow, more bob-and-chat than athletic; surf is basically a rumor, but kayaking and boat trips into Lan Ha Bay are the real win, with better water and fewer boats than Ha Long. Snorkeling and diving are possible but rarely mind-blowing; think “nice extra” rather than “reason to come.” Compared with central Vietnam’s long, open sweeps like An Bang or My Khe, Cat Ba’s beaches are more about the setting than the sand, and if you accept that, the place earns its spot on a northern Vietnam loop.