I did the 3 hour day tour with a couple of friends and it was an amazing experience. Bogan and Steven are excellent tour guides and highly knowledgeable of the route, wildlife, and shell key. They made sure we were prepared and had enough water and sunscreen. Bogan was able to give us a great history of shell key and was able to identify and teach us about all the little sea creatures we saw. Steven helped guide us through the route and made sure we didn't fall behind and that we had plenty of time to do the route and also have some rest in between. I highly recommend doing this with some friends, its an amazing experience and worth it!