Rockwater Secret Cove Resort, near Halfmoon Bay, B.C.

This ragged stretch of the Sunshine Coast is so unspoiled and awe-inspiring, it's sometimes hard to imagine that anyone but a bald eagle or two has been here before you. Wooden walkways meander through the forest where Rockwater Secret Cove Resort's 13 roomy, light-filled, adults-only canvas tent suites―with fluffy king-size duvets and tubs for two―perch above the blue water. Each suite has a deck and views to inspire castaway fantasies. At Rockwater's Spa Without Walls, treatments are on a platform at the water's edge with stunning views. $$$$ U.S.; rockwatersecretcoveresort.com