Bommen () is an islet west of LangÃÂ¥ra in Tiholmane, part of Thousand Islands, an archipelago south of Edgeøya. At low water it is connected with LangÃÂ¥ra, creating a bar that partially blocks access to Tofamnhamna (Two Fathoms Bay), the anchorage within LangÃÂ¥ra, Kalvøya, Lurøya, Sperra, Bommen and Spunset.