Blue Hole (Red Sea)
The Blue Hole is a diving location on the southeast Sinai, a few kilometres north of Dahab, Egypt on the coast of the Red Sea.
Blackheath, New South Wales
Blackheath (postcode: 2785) is an Australian town located near the highest point of the Blue Mountains, between Katoomba and Mount Victoria in New South Wales. The town's altitude is about and it is located about west north-west of the Sydney central business district, north-west of Katoomba, and about south-east of Lithgow.