Children wade into a sulfur hot water spring at the Bir Wahed area in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Ahmed el-Masri, a desert guide and driver, serves tea at sunset during a safari trip in the vicinity of Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Ahmed el-Masri, a desert guide and driver, prepares a fire for tea before sunset during a safari trip in the vicinity of Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Ahmed el-Masri, a desert guide and driver, prepares a fire for tea before sunset during a safari trip in the vicinity of Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

A cyclist rides along a road by the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Shows a view from a safari vehicle cruising the dunes in the vicinity of Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Shows a view of the Bir Wahed cold spring in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

A cyclist rides along a road by the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Vehicles are parked outside the sulfur hot water spring at the Bir Wahed area in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Shows a view of the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Shows a view of the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Vacationers sit by a sulfur hot water spring at the Bir Wahed area in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

People wade in the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

People wade in the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP

Shows a view of the Siwa salt lake in Egypt s western desert oasis of Siwa, about 55 kilometres east of the Libyan border and about 750 kilometres west of the capital. AFP