Canada
The Fundy tide charges upriver twice daily, turning a calm brown river into surfable waves.
The flats sit glassy until the bore arrives as a moving line of white. Minutes later, rafts are airborne over waves running the wrong way.
The Shubenacadie's tidal bore is the Bay of Fundy's push felt far inland, and local rafting operators ride the roughest window of each tide. Trips are timed to the lunar clock, with mud-slick banks and riverside barbecues part of the ritual. Between tides the river returns to stillness as if nothing happened.
Family
Older children ride the bore safely with operators who read the tide daily.
Friends
A raft of friends and the biggest tide of the month is the whole plan.
Couple
Share the soaking, then dry out over the riverside barbecue.
Operators fold a riverside barbecue into the rafting ritual between tides.
Up the street in Maitland, the in-store café at Frieze and Roy, said to be Canada's oldest general store, serves hot food, pre-made sandwiches and snacks.

Vallon-Pont-d'Arc
France
Gateway town to the Ardèche canyon, its stone arch and 36,000-year-old cave paintings.

Luleå Archipelago
Sweden
Over a thousand islands in a brackish sea that hard winters turn into a white plain.

Elba
Italy
Napoleon's island of exile hides iron-red beaches beneath a granite mountain you ride up standing.

Kosterhavet National Park
Sweden
Sweden's only coral reef hides beneath the surface of its westernmost archipelago.

Kananaskis Country
Canada
Alberta keeps a whole working mountain playground one range over from Banff's coaches.

Athabasca Glacier
Canada
A tongue of the Columbia Icefield lies close enough to touch, and visibly leaving.

Niagara Falls
Canada
A river the size of a sea pours over the Horseshoe metres from the promenade rail.

The Burgess Shale
Canada
Half-billion-year-old creatures lie pressed in mountain shale above a tiny railway town.