Lots of manatees - few crowds. Need at least a 3-7 mil suit with hood. Temperature about 72 degrees. Visibility was 10-15 feet early morning. Be aware of FL law concerning manatees. No diving, just snorkeling. No flash photography. No chasing or feeding. Must enter water from boats VERY quietly so as not to disturb manatees. Fabulous experience for everyone of any age. Winter is best time since crowds are few.