If you're short on time, these are the best half-day Crystal River National Wildlife Refuge tickets and tours: The 'OG' Manatee Snorkel Tour with In-Water Guide/Photographer (From US$59.45) Manatee Snorkel Tour with In-Water Divemaster/Photographer (From US$69.95) Small group Manatee Tour with In-Water Divemaster/Photographer (From US$98.50) Morning Swim and Snorkel with Manatees-Guided Crystal River Tour (From US$67.11) Private Manatee Swim for up to 6 with In-Water Divemaster/Photographer (From US$600.00) See all Crystal River National Wildlife Refuge experiences on Tripadvisor