Ocean Walker Academy

Welcome to Ocean Walker Academy at Crystal Lake, the premier destination for wild swimming in Lincolnshire, England. Our 7-acre lake is built over natural calcite crystals, offering unique therapeutic benefits and the ultimate outdoor swimming and wellbeing experience. Whether you’re a beginner enjoying our shallow swimming area or an experienced swimmer exploring the deeper waters, Ocean Walker Academy has something for everyone.

All wild swimming sessions must be booked online—please check our available dates and times. Walk-ins and phone bookings are not available.

When open water swimming is not running, the venue is available for private hire for events, conferences, or 1-1 lessons in our endless pool. You can book a single wild swimming session for £11.50 per person, or save with a discounted swim package for regular visits. Packages are individual and non-transferable, and all bookings—whether single sessions or packages—must be in the participant’s name.