The Monster Mash Halloween Party is a spooky night out at Longbranch Saloon in Boerne, a Hill Country town just north of San Antonio. Expect a Halloween party vibe with costumes, good company and the kind of fun that comes with dressing up for the night. Longbranch is a lively saloon, so it's a natural fit for a laid-back evening with friends. It's a great pick for adults looking for a fun Halloween night in Boerne.