浜辺 (はまべ) Japanese meaning | KotomoraUsage patterns
〈場所〉を歩くto walk along the beach
In the evening, the two of us walked along the beach.
〈場所〉で遊ぶto play at the beach
The children played, collecting seashells at the beach.
〈場所〉に打ち上げられるto be washed up on the beach
A large jellyfish had washed up on the beach.
浜辺 specifically means a sandy beach, whereas 水際 can refer to the edge of any body of water, sandy or not.