The top three here are great. Anythingbin Icacos for snorkeling is going to be good. https://www.tripadvisor.com/Attraction_Products-g147319-t11912-zfg12023-a_contentId.1188572293983215+268261940-Puerto_Rico.html

Headed to PR soon with 2 teens. We definitely want to do a snorkel tour (we are based in Isla Verde). Any recs? Have been searching the internet but there are so many options!