Tulu is a great snorkeling guide feel free to pm me if you want his number. Many people on this board have been repeat customers of his long time.

I have also heard great things about Lil Alphonse as well.

As for things on the island the butterfly jungle is cool if you like that kind of thing and not expensive.
http://www.butterflyjungle.bz/


San Pedro based Belize Blog since 2007 - great travel resources & discounts https://tacogirl.com/