Sailors who have RYA Stage 2, and would like to progress their sailing skills in a fun and enjoyable setting can join WYSA.. The season commences with a two day training weekend at Aztec Upton Warren, this year on 24/25 April. Sailors can join a group to complete RYA Stage 3, which will enable them to join regular weekly sessions after the weekend, or to further develop their seamanship skills.. Saturday afternoon sessions (1.30-4.30pm) commence on 1st May and continue until 10th July (excluding half term) when sailors can continue to develop their seamanship skills, whilst having fun on the water with friends.