St Thomas catamaran or private boat excursion

[chimpwars]

In St Thomas we think we'd like to do a catamaran for snorkeling & beach day. it'll be 4 of us with 2 kids ages 9 & 13 if that helps.
I'm looking at Scubadu, Nate's custom charters, and Island Flyer.
Has anyone used any of these excursions? Or open to other charters. thanks!

If you wen thru DCL-wondering about how many people were on the boat with you?

 

[awilliams4]

https://www.tripadvisor.com/ShowUse..._Excursions-St_Thomas_U_S_Virgin_Islands.html !!!!!!