Maharin Park is a pleasant spot to take a breather. Enjoy a picnic, throw a Frisbee around or just lie on the cool grass and shut your eyes for a while.
You'll have sightseeing choices galore when staying in Anglet. Maharin Park is a great place to begin here, but there are many other worthy sights to appreciate. Cote des Basques, Grand Beach, and Biarritz Aquarium are not far from the recreation and green space and and will cap off your day nicely.