Sligo is very close to the ocean. It's basically about 5438 meters from the ocean depending on where you measure to the exact coastline.
If you're driving to a town near the beach or coastline, you could try Strandhill.
How far is Gatlinburg from the ocean
How far is New Orleans from the ocean
How far is Astoria from the ocean
How far is Cheyenne from the ocean
How far is Dana Point from the ocean
How far is Knoxville from the ocean
How far is Burbank, CA from the ocean
How far is Milwaukee from the ocean
How far is Paso Robles from the ocean
How far is Lecce from the ocean