Bring lots of patience with you to the PV dolphin center.
Expect a lot of hurry up and wait. DS11 and I had the 2pm slot for the Dolphin Encounter. We waited in Diversions to leave (you are give
DCL's waivers to sign); we waited just outside the ship after we disembarked, just to get on their bus; we waited when we got there (you are given their waiver to sign); and we waited again for the encounter to begin.
You cannot take your own pictures, during your encounter. If you want photos you have to purchase theirs. At our encounter, there were two groups of 8 and the photographer took photos of both groups and then left to dump her camera; even though we were in the first group of 8 we couldn't look at our photos until the second group was done; because the same photographer took pictures of both groups. When we made it to the photo area EVERYONE at the dolphin center was there trying to get pictures at the same time and it was extremely disorganized.
When you get to the photo area ASK FOR A FORM IMMEDIATELY. (we waited 10 minutes before someone started to give out forms) The pictures will be scrolling on the TV screens & each frame is numbered. Write down the number of the pictures you want; then give the form to the staff behind the counter. They will give you a copy that you take to their gift shop in order to pay. After you pay, you have to return to the photo area (where everyone is still crowding around to pick up forms and look at the screens!) to show the receipt and pick up your pictures.
Check your bag for the pictures they give you; I ordered 4 pictures and they only gave me 2 and I had to ask them to find the remainder of what I ordered.
When we were dropped off there was no mention of what times the bus would leave to return to the ship. After I picked up our pictures we walked back to the entrance and there were 2 busses sitting there. After we got on the driver refused to leave until every seat was filled and we waited for about 10 - 15 minutes for just four more people. One man even got off the bus & went back inside to ask one of their staff to make an announcement that the busses were available to board. We didn't leave the dolphin center until 5:15pm and made it back to the ship at 5:40. We practically dived into our Pirate outfits (without a shower!) and made it to Animator's by 6:10.
The actual experience with the dolphin was teriffic and DS11 really enjoyed it. But if you have the early dinner seating try to get times at the Dolphin center before 2pm. They are just not organized enough to get you back in a timely manner.