Ray: In Lahaina, Maui, try Black Rock in front of the Sheraton resort in Kaanapali and Kahekili Beach Park off of Kai Ala Drive (just up the street from Black Rock). Both sites are relatively close to the Lahaina pier (I'm assuming you're tendering there) and provide great snorkeling for those with limited experience. In Kona (big island), try Kahalu'u Beach Park. Again, this site is close to the Kona tendering area and excellent for novice snorkelers. At Kahalu'u, you're almost guaranteed spotting turtles. Have a great trip, Aloha.