Sea Kayak in Castine Maine's beautiful, serene, island speckled Penobscot Bay, connecting Mid Coast Maine and Downeast Maine. Castine Kayak offers customized sea kayaking tours and instructional clinics for beginners to experienced paddlers. We're located right on the harbor at Dennett's Wharf Restaurant with great food and facilities to begin and end your trip. Our Registered Maine Sea Kayak Guides lead small, intimate groups on exciting naturalist ecotours, exploring marine sea life, geology and Castine's rich historical past. Top of the line equipment is provided with personalized instruction and customized trip planning. Daily tours: sunrise, morning, afternoon, sunset, bioluminescent night tours, full moon trips & overnights.