Brno is about 450 km from the ocean.
If you're driving to a town near the beach or coastline, you could try Omisalj.
How far is Jackson Hole from the ocean
How far is Williams from the ocean
How far is Whitefish from the ocean
How far is Asheville from the ocean
How far is Temecula from the ocean
How far is Shreveport from the ocean
How far is Portland from the ocean
How far is Santa Barbara from the ocean
How far is Clearwater Beach from the ocean
How far is Bagan from the ocean