Slugs Bay is a secluded, tiny, pocket beach with a few square metres of sand located in the Marfa ridge overlooking Mellieħa.
The bay can be reached over difficult terrain descending along a cliff slope. Access from the water is restricted due to rocks jutting from the sea. Consequently little or no development has taken place and the bay is largely in pristine condition. The bay took its name from the dark brown, sea-slug which can be found in its waters. The rare indigenous plant the pancratium maritimum is abundant in the area in August.