Holiday Rental for Groups or Families and Friends. Sleeping Giant Bunkhouse at Absolute Adventure, Powys, Brecon Beacons, sleeps 10-42 in 9 bedrooms. In a stunning mountainous location, but also accessible with good transport links and facilities, the flexible accommodation at this holiday bunkhouse in the Brecon Beacons makes it suitable for a wide range of groups, from corporate team building to school field trips to activity based breaks in the Beacons for individuals and families.