Great excursion for the whole family, English skills required for the explanations of the guides, sun protection important!
We were the only ones in the afternoon and so had a private tour. The waters around the mangroves are not deep, water shoes are good if you want to get out, but not required, sun protection is, even on the legs!
The guides are great: friendly, helpful, prepared, punctual, explain well and interesting and also respond to individual interests.
Unfortunately we didn't see any manatees (it was very hot), but many other interesting animals!
An all-round worthwhile excursion that couldn't have been better!