Isa and her team with the Woodwind are top notch. We did this snorkel with them 2 weeks ago and it was awesome. My communication with them was quick and easy. No deposit required all they ask is if you please cancel beforehand if you can't make it.
We met at the Divi Flamingo Resort just a 5 minute walk from the port. The crew is well trained and all the snorkel equipment is some of the best I have experienced on a tour. There are even prescription goggles/masks, weight, SPF shirts, reef friendly sunscreen if you need them.
Isa and her team love what they do and they have a vested interest in giving you a great experience while observing and protecting the surrounding sea life.
You won't be disappointed if you try Woodwind