The original intention was that the scientists would stay on "Campania", commuting to the islands each day, but the survey party had misjudged the tides; "Campania" could not enter the lagoon, and had to anchor in the Parting Pool. The pinnaces could not tie up alongside "Campania" at night, and had to be moored several miles away. Transferring to the boats in choppy waters was hazardous. One scientist fell in the sea and was rescued by Commander Douglas Bromley, "Campania"s executive officer. Rough seas prevented much work being done between 10 and 14 August. It took about an hour and a half to get from "Campania" to H2, and travelling between "Plym" and "Campania" took between two and three hours. Even when a boat was on call it could take 45 minutes to respond. Boat availability soon became a problem with only five LCMs, leaving personnel waiting for one to arrive. The twelve smaller LCAs were also employed; although they could operate when the tides made waters too shallow for the pinnaces, their wooden bottoms were easily holed by coral outcrops. On 15 August, some men were transferred from "Campania" by one of its three Dragonfly helicopters, but the weather closed in and they could not be picked up again, having to find shelter on "Tracker" and "Zeebrugge", which were moored in the lagoon. To get around these problems, tented camps were established for the scientists at H1 on Hermite Island and Cocoa Beach (also known as T2) on Trimouille Island.