Manta Ray Bay Hotel and Yap Divers will host Manta Mania May 24 - May 31. This will be a week of combined science, underwater photography and fun with Dr. Andrea Marshall, who is doing groundbreaking work in the study of mantas, and Tim Rock, a Lonely Planet author and Micronesia-based photojournalist. They will be on the dive boats daily, along with Manta Man Bill Acker. Evenings will feature captivating film shows and seminars about mantas and diving throughout the world by Marshall and Rock. Participants will learn about identifying manta rays, and they will help to kick-start the Yap Manta Ray ID program. Seven-night, 10-dive packages start from $1,229 per person. For more information, visit mantaray.com/mantamania.