Summarize the short story through the tunnel

Through the Tunnel is a story about a young boy who goes with his mother to the beach. He decides to go to the "wild bay" instead of the "safe beach." The boy is swimming when he sees some naked boys cliff diving and sees them swimming under water into some kind of tunnel. The boy wants to join them and starts practicing holding his breath to see how long he will need to in order to go through the tunnel. Eventually, he faces his fears and travels through the tunnel, barely making it out the other side.

This is all from memory. Hope I helped.

Aparagraph would strengthen it the most