- Piperi Island (core reserve): the heart of the park and one of the best places to try spotting the endangered Mediterranean monk seal — dramatic cliffs, clear water and strict landing rules that keep the wildlife undisturbed. Boat approaches only; don’t expect to jump ashore.
- Gioura Island: a quiet, uninhabited island full of seabird colonies and scattered archaeological ruins. It’s raw and lunar-feeling — great for wildlife watching, sharp coastal views and the kind of silence that makes you notice seabirds for the first time.
- Posidonia seagrass meadows: these underwater meadows are the ecosystem’s backbone — crystal-clear snorkeling shows dense seagrass, little fish nurseries and often sea turtles. They’re a big reason the park’s biodiversity is so healthy.
- Sea caves and hidden coves:
- Piperi Island (core reserve): the heart of the park and one of the best places to try spotting the endangered Mediterranean monk seal — dramatic cliffs, clear water and strict landing rules that keep the wildlife undisturbed. Boat approaches only; don’t expect to jump ashore.
- Gioura Island: a quiet, uninhabited island full of seabird colonies and scattered archaeological ruins. It’s raw and lunar-feeling — great for wildlife watching, sharp coastal views and the kind of silence that makes you notice seabirds for the first time.
- Posidonia seagrass meadows: these underwater meadows are the ecosystem’s backbone — crystal-clear snorkeling shows dense seagrass, little fish nurseries and often sea turtles. They’re a big reason the park’s biodiversity is so healthy.
- Sea caves and hidden coves: jagged coastlines carve out turquoise caves and tiny pebble bays. Best reached by boat or kayak; perfect for cliffside photos, snorkeling right off the boat and cooling off in near-empty water.
- Alonissos Chora and coastal trails: the hilltop old town with stone alleys, sea views and sunset spots. Mix short hikes along the coast with wandering the Chora’s lanes — good for a day when you want nature plus a coffee and a taverna meal.
- Steni Vala and small fishing villages: low-key bases for exploring the park — simple tavernas, cheap rooms and easy access to boat trips and snorkeling spots. Practical and pleasant: sleep here, eat fresh fish, and book your sea trips locally.
- Diving sites and wrecks: the park has excellent dive sites — rocky reefs, caverns and a few wrecks teeming with sponges, corals and schooling fish. Visibility is usually excellent; guided dives are the way to go if you want the best spots.
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Best Backpacking
Hi, I’m Johan (Netherlands 🇳🇱), the creator of TakeYourBackpack. Over the past decade, I’ve backpacked through 80+ countries across six continents, gaining extensive experience with independent travel, long-term trips, and overland routes.