Samui is round, and every coast does something different with the light. The east side — Chaweng, Chaweng Noi, Lamai — looks straight at the sunrise, so its beaches are at their best from about six to half past seven and flat and crowded by ten. The west coast from Nathon down to Lipa Noi and Taling Ngam is the only place on the island where the sun goes down into the sea, with the Five Islands and the Ang Thong archipelago on the horizon. The north coast, Bophut and Maenam, looks across at Koh Phangan and gets side light at both ends of the day. Near the equator the golden hour is short — closer to half an hour than an hour — so a session is built around one coast, not two. The ring road is about fifty kilometres, and through Chaweng in the evening it is slower than the map suggests.
Most weddings and vow renewals here happen in private villas and resorts, and that is where permission matters: the sand in front of a resort is public in Thailand, but its lawn, pool deck and sala are not, and a shoot there is booked with the venue. The other constraint is the airport. Samui Airport sits on the north-east corner, and Thai rules keep drones out of a 9 km radius around it unless cleared, which takes in Bophut, Fisherman's Village, Choeng Mon, Big Buddha and the north end of Chaweng. Drone work is planned for Lamai, the south coast and the west. For a villa inside the zone, the aerial is replaced by a frame from the highest terrace or a hill nearby — and that is settled before the booking, not discovered on the day.