We swam into a group of eagle rays under our bungalow at the Hilton in Bora Bora and luckily had a camera. Although we were told that these rays are friendly and not dangerous, they had so many sharp barbs that it’s probably wise to be a bit cautious. At first, they were on just one side of us (in front) when we arrived to their location. However, after a minute or two, they moved and started swimming in circles around us. It felt like they were studying us. After about 10 minutes of them circling us, we decided to back off and head back up to the bungalow.