Actually, there is no ocean or ocean resort between Garrett County MD and Hagerstown MD. You might be thinking of Ocean City, MD which is about 205 road miles southeast of Hagerstown.
somehow
The city of Edmonton is approximently halfway between Edmonton and Calgary.
Bithlo,fl and Wedgefield,fl are towns halfway between Cocoa Beach and Disney.
Mayfield Manor, MD.
About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.About halfway between Dublin city and Tipperary town is Portlaoise.
Keller, VA
The only thing between those two places is the Atlantic Ocean.
The middle of the northern section of the Atlantic ocean
Bracken, Indiana is halfway between Johnson City & Rhinelander
Halfway between New York and New Zealand is the Pacific Ocean. To be more precise, the point in the middle is located pretty much halfway between Mexico City and Tahiti (a little bit closer to Tahiti than to Mexico City, actually). I could not find any island close to this point on my maps, so it appears it's just plain ocean there.
Halfway city between Atlanta and Charleston SC