Scheveningen is a popular sea resort in the Netherlands, a stone’s throw away from the seat of government in The Hague. It has a busy marina and a lively (somewhat kitschy) promenade – great for an afternoon of sightseeing. You’ll also find plenty to do nearby. Go for a walk in the dune landscape or take a tour around the Palace of Peace. Visit Madurodam to see the Netherlands rebuilt in miniature, check out the city centre of The Hague, or explore the beach and perhaps even go kitesurfing.
Cascais is a popular port town in Portugal with a large yacht harbor and several sandy beaches in and around town. Surfing, windsurfing, sailing and kitesurfing are popular in the region, and nearby cliffs are a great destination for a hike. The town proper offers everything you need to recuperate from your exertions: restaurants, taverns and all the urban sophistication you might miss when at sea. You can visit Lisbon from here for a day trip, but Cascais itself is also well worth a visit.