1 / 3   Divers in action around immersed tank off the coast of the southern Lebanese port city of Sidon and near the island of Al-Zireh, the last remnant of Sidon's otherwise sunken Old City. /VCG Photo

2 / 3   Six old tanks and four other military vehicles, all of which had been donated by the Lebanese Army, were submerged to form a habitat where coral reefs could grow and reproduce. /VCG Photo

3 / 3   The artificial reef will aim to rejuvenate marine life near Sidon's coast and also be a destination for tourists and divers. /VCG Photo