Sweden
Thirty thousand islands dissolving into the Baltic, each with its own jetty and swimming rock.
Some thirty thousand islands dissolve eastward from Stockholm's harbour, thinning from forested inner islands with summer houses to bare outer skerries kept by seals and seabirds. The white ferries work like a waterborne bus service — tap on, sit on deck, and watch the city release you island by island.
Stockholm's archipelago is Sweden's largest, running dozens of kilometres from the capital into open Baltic. The inner ring — Vaxholm, Grinda, Möja — keeps guest harbours, swimming coves and restaurants a scheduled ferry away; the outer line — Sandhamn, Landsort, Arholma — faces the sea with more wind and fewer comforts, which is its point. August means crayfish season, when jetties sprout paper lanterns and the singing carries over the water; most months mean wood-fired waterfront saunas cooled by a Baltic plunge. You can day-trip it, island-hop it for a week, or rent one stuga and let the ferries pass — all three are correct.
Couple
A stuga on a quiet shore, a jetty to swim from and ferries passing at a distance — island time for two.
Family
Grinda and Finnhamn keep gentle shallows, easy trails and family-ready stugas — and the ferry ride is half the adventure.
Friends
Crayfish-party season in August was invented for groups — paper hats, aquavit verses and a jetty of your own.
A crayfish spread on a jetty in August — dill crowns, paper hats, singing mandatory.
Smoked Baltic herring from an island harbour smokehouse.

Novo Airão
Brazil
In tea-dark water, pink dolphins take chilled fish from staff hands; you may touch, never feed.

Hideaway Island
Vanuatu
Post a waterproof postcard from the world's only underwater post office, then snorkel the sanctuary reef.

Parque Nacional Radal Siete Tazas
Chile
The Claro River pours through seven basalt bowls before vanishing into forest.

Fathom Five National Marine Park
Canada
Shipwrecks show through Georgian Bay water clear enough to read their decks from the surface.

Öland
Sweden
A windmill-studded limestone steppe reached across six unbending kilometres of bridge.

Grövelsjön
Sweden
A mountain station beside the Norway line, whose trails cross countries before lunch.

Trollskogen (Öland)
Sweden
A forest of wind-warped oaks so twisted they look like a spell interrupted.

Hornborgasjön
Sweden
Thousands of cranes dancing at a restored lake each spring — a resurrection with wings.