The Pearl, also referred to as "Pearl of The Gulf" and described as the Riviera Arabia, is a US$ 2.5 billion (QR 9.1 billion) man-made island being built off the coast of the West Bay Lagoon area in Doha, Qatar. The 988 acre (4 million square meter) island is shaped like a string of pearls and diamonds and will be linked to the mainland by an 4-lane, palm-tree lined super highway. The islands will provide over 40 kilometers (24.9 miles) of new coastline and will be located 20 kilometers (12.4 miles) from Doha's international airport. The Pearl-Qatar is being built on a reclaimed pearl diving reef in the Arabian Gulf and will have a Riviera-style theme that will encompass 7,600 freehold residential units that will accommodate 30,000 residents. The residential units will be contained in twenty-one 20-storey towers with 3,116 apartments and 410 town houses/detached villas. The Pearl will also contain 10 themed districts (Porto Arabia, Viva Bahriyah, Costa Malaz, Isola Dana, The Quartiers, La Plage Villas, Bhari Villas, The Grand Cruz), three luxury hotels, four marinas that can accommodate over 700 boats, leisure facilities, and 60,000 square meters (645,800 square feet) of luxury retail and restaurant space. Property owners of The Pearl will automatically receive Qatari residency visas and will be granted unrestricted freehold titles to their property.