Sula Sgeir Sula Sgeir is a large rock about 17km SW of Rona. It has a large Gannetry and is also home to many other breeding seabirds. The Men of Ness annually harvest up to 2,000 young Gannets or guguas here. The island is split by caves which run right through the rock and which can be traversed by boat.. Atlantic Sunrise Tigh Beannaichte Caves Caves Gannets Gannet Gannets Gannets Guillemots Guillemots Geodha Phuill Bhain Sron na Lice Sron na Lice Guillemots & Rocks Misty Morning Misty Morning Sron na Lice Sulasgeir Dawn From North End From North End