Hi, Abbie-- To get to the Potomac Presbyterian Church from the Beltway, take River Road (Rte 90/exit 39 West) toward Potomac about 3 miles. After crossing Falls Rd (Rte 189/stoplight/"downtown" Potomac), continue 1/4 mile to Gary Rd. Turn right on Gary, then an immediate left into church parking area. Also okay to park in adjacent school lot. Doors open at 7. Hope you can make it! Lydia Schindler Darnestown