Sorry to heard you didn't enjoy the bumpy ride. The front is the bounciest part of the raft. Our usual introduction before you board the boat is bouncy and exciting in the front, calm and cautious in the back if your not sure what you want sit somewhere in the middle, which gets a few giggles. Hawaii's the first State to pass the sunscreen ban which means any one with permits to use Kealakekua bay has to follow the reef safe sunscreen laws. The Sun Bum Mineral line is Zinc and Titanium based sunscreen, which use to be the preferred sunscreen ingredients until chemical based sunscreens were introduced because they are cheaper to manufacture. The problem is the chemicals Oxybenzone and octinoxate. "Oxybenzone is really toxic to the juvenile form of corals, When it washes off your body and into the ocean, the chemicals can cause “bleaching, deformities, DNA damage, and death in coral." As protectors of our 'aina and steward of the land we have to protect the natural resources of Hawaii. If others were using their sunscreen it was probably reef safe as most of our crew can spot what kinds aren't without having to read labels. We hope you have healed from the sunburns and are enjoying your time back home.