The beach of Lisbon is a very popular destination for tourists and locals.
Many things are possible and there are usually a lot of attractions in summer. Practicing windsurfing and kite boarding is not a problem. Most of the areas of the beach are quite clean and have the blue flag of the European Union for excellent conditions.

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A reasonable good guide on the beaches near Lisbon can be found in http://www.lisbonbeach.com. These guys are also able to take you to any of these beaches.
Comment by Sam — September 23, 2011 @ 4:27 pm