Approximately 372 people call Thetis their full time home and a large number of people make the island their second home on weekends, especially during the summer season. The residents of Thetis Island and First Nation residents of Penelakut Island also share a common connection of island life, ferry service and some commercial ties. Penelakut residents will often visit Thetis for supplies, to work and to participate in weekend craft shows.
Water recreation is a favourite pastime on this idyllic island, with swimming in its many shallow-water beaches, fishing for halibut and salmon, kayaking, and scuba diving among reefs and wrecks in Porlier Pass.
Accommodation includes rustic-chic bed & breakfasts and guest houses, with local eats like from-scratch pies at Cedar Beach Pizza, artisan pies and jams at Howling Wolf Farm Market, and sit-down dining at Thetis Island Marina & Restaurant. On summer Saturdays explore the Thetis Island Market for a variety of local artworks, gifts, and food products.