Beach vs Boat Snorkeling
This is a common question. There are times when snorkeling from the shore can be more convenient if you know the waters. I found that knowing where to go and what is safe is the biggest part of snorkeling.
Having a local guide can help with not only safety, but your viewing opportunities as well.
Here is a wonderful resource that MauiSnorkeling.com to highlight the pro’s and con’s of snorkeling from boat or from the shore.