Land in Tel-Aviv, rent a car or go by train up north to Atlit(there is a train station in Atlit)then go west to the nearby Kibutz-Neve Yam, and you are in the sea. have fun
There is two seasons, in the spring (Sep-Nov) and in the Ottem (Apr-Jun). on those season there is a northen(side-onshore) wind that last for 2 days in each session.
The shore is clean and fun, there is a local shop and pump for Slingshot equipment.