Casernes is a sand-bottom beach break that marks the northern limit of the Seignosse beaches, reached through the campsite access behind the dunes. It is one to keep an eye on, because when the banks line up across its baines it can be really good, throwing fast, lip-smacking walls that peel both left and right.
When It Works
The break pulls in swell from west to north (W-N), with northwest (NW) the best match, and it stays consistent enough to be worth checking often. It is usable from 0.3 m / 1 ft to 3 m / 10 ft. The standout sessions come on a head-high mid tide with a morning or evening glass-off, when the walls run fast and hollow across a handful of banks.
Wind and Tide
Look for east (E) offshore wind to clean it up. The beach works through low, mid, and high tide, with a rising tide generally the better call.
Local Tips
Casernes suits beginners looking for room to learn, though the lineup gets busy when the sand turns on. You will also find more nudists along this stretch than at the neighbouring accesses.
Access
Getting in means a decent 500 m walk from the deep sand parking under the pines, which can thin the crowd a little compared with Penon, even if it is often just as busy as everywhere else. There is a car park with free parking plus roadside parking, and the full set of major-beach facilities: camping, lifeguards, a surf school, board rental and a food shop.

