Your adventure starts at Sea Thru Kayaks and Paddlesport Adventures, located inside Salt River Bay National Historical Park and Ecological Preserve at Salt River Marina. Explore the rich natural beauty and history of St. Croix by kayak or stand-up paddleboard (SUP), with guided tours and self-guided rentals for a range of experience levels.

Discover Salt River’s mangroves, crystal-clear waters, wildlife, and historic sites on a guided glass-bottom kayak tour or a day kayaking tour with a beach stop. For a truly unique experience, join our bioluminescence kayak tour in Salt River’s Bio Bay. Our completely transparent kayaks provide an unobstructed view of the glowing waters as you paddle among billions of bioluminescent microorganisms.

Prefer to explore independently? Rent a glass-bottom kayak, sit-on-top ocean kayak, traditional SUP, or transparent Sea Thru SUP and set your own pace. Self-guided rentals are available throughout the day, giving you the freedom to explore the park’s bays, mangroves, beaches, wildlife, and historic Columbus Landing.

SUP enthusiasts can also join guided eco-tours designed for either beginners or experienced paddlers. Long-term kayak and SUP rentals are available, including delivery to waterfront accommodations.

Sea Thru Kayaks is a family-owned and operated local business and St. Croix’s paddle sport headquarters. Our fleet includes traditional, glass-bottom, and transparent kayaks, as well as traditional and transparent SUPs. Our Adventure Boutique also offers reef-friendly sunscreen, rash guards, snorkeling gear, and souvenirs.

Tours and rentals are available for ages 8 and up, with options for beginners through experienced paddlers. Book your adventure online and experience Salt River from a whole new perspective.