From Central Hong Kong by Ferry, take Ferry Pier Number 5 to Mui Wo (fast ot slow ferry available). Then, in Mui Wo take a bus to Cheung Sha beach (lower). Take Bus number 1, 2, 3 or 4. It takes roughly 20 min to get there. Ask the driver to stop at Cheung Sha. On the beach, when facing the sea, on your left a windsurfing club (Long Coast Seasports) where you can rent good gear. Nice people and good ambiance. On the right a South African restaurant to chill out after a good session (restaurant gets a bit crowded on Sunday).
Cheung Sha is located at the south coast of Lantau Island. During April to October, there is constant and steady side shore Easterly wind and onshore, southwesterly wind, which is perfect for beginners and intermediate sailors; while in winter from September until April, the wild north and east wind allows for speed planing over flat water.
Long Coast Seasport has a facility at this beach.
In summer (May-Sep) the main wind direction comes from South West, then sea is a bit choppy. When Typhoon hits HK or come closer to the island, you can expect strong wind and swell good for bump and jump. In summer, you have to use sails from 6.5 to 7.8. In winter, from October to April, wind usually blows North- North East and comes down from the mountain. Then, a venturi effects double the strength and you can get easily 30 knots. We have been sailing in winter with 4.5 and even 3.7. Very good fun as the sea is very flat so ideal conditions for speed and slalom. Very good ambiance on the water with locals and foreign windsurfers.