I'm planning a leisure camp on a beach this December. Need some recommendations about whr to go.

It'll be a small group. Maybe 4-5 people only. A night or two, depending on the situation. In the daytime I was thinking to visit some local tourism spots (if any), then at night enjoy the seaside. Plan to do a BBQ also with own equipment if necessary.

Rather worried about safety... human and nature.
It'll be monsoon season, so the East Coast might not be safe.

Any beach which are safe to camp and are not too crowded? Preferably not on an island.