We found Navin on TA and chose to have the dolphin trip with him, although the starting hour was not the most convenient for us having a 9 months old baby and 5 years old toddler. However, the great reviews convinced us and I can just say it was worth every minute of no sleep and every single rupee.
Although it's not a private tour, it felt like it was because there was only another couple with us on the boat. Navin told us he prefers to have less people on the boat so he can offer a better service to each of them.
Our morning started with coffee, home made banana bread (possibly the best I had) and yummy samosas, all prepared by his wife. Navin and his son took us to the place where the dolphins could be found that day and we started swimming. He also came in the water and guided us to best spots to see dolphins. He even guided our 5 year old daughter and she was able to see them. The boat stopped several times and we jumped in the water and swam with them.
Afterwards we went to see the crystal rock and snorkeled in a nice calm area. On the way we even found a red starfish, which was amazing. Once we reached Benitier island, he took us to a private area where we were the only ones. We were able to walk around, swim or just relax on the beach while he was preparing one of the most delicious lunches we ever had. I forgot to mention he served us rum prepared by him with various spices, which really tasted great. While waiting for the grill to be ready, he served some tuna carpacio and then the feast continued with shrimp skewers, fresh fish, lobster, accompanied by gralic bread and salad and it ended with flamed banana with passion fruit.
During the entire day, we felt Navin more as a friend, rather than a service provider. We enjoyed his stories so much and every little personal touch (his son found a baby crab and brought it to us to hold it in our hands, he showed as the Coca Cola drinking geco :)), the starfish, letting us drive his boat a bit, taking photos of us and probably others that don't come to my mind right now) really made the difference.
I cannot recommend Dolphin Warriors enough. Not only was it great value for money, but we feel the small details added so much to this experience which is itself amazing.