My friend and I went to 3 islands in April and plan to return. We were both surprised to find out that snorkeling was such an important and fun activity and wished we had been prepared. For our next trip, what are your most practical suggestions for us to learn. I live in a province that does not appear to offer teaching during the winter months but has sports stores where we can buy masks, etc. Should we wait and take a class and rent equipment upon arrival? My friend also has a collapsed lung-he is willing, but hesitant to snorkel, says he chokes when he tries. Is the equipment any different or improved since about 15 years ago-. We are in our 60's but both swimmers and not afraid of the water. I have never snorkeled. Any suggestions or information for us? Thank you in advance.