Le Sturn is a shallow shore training site at the mouth of Aber Ildut, built around a rocky, kelp-covered outcrop over white sand. It is used for first dives and early training when the tide is high enough to cover the rock, and it rewards slow, close exploration of weed-lined crevices where small invertebrates hide. Plan it as a tide-sensitive training dive, not a relaxed all-day open-water stop.