Holly Acres On The Water offers easy access to the Occoquan and Potomac. Our marina provides 148 covered and open slips for vessels up to 50 feet, with secure land storage for up to 1,800 boats and trailers. Protect your investment with gated piers, controlled entry, and on-site security for peace of mind. Expanded amenities are currently underway to enhance your experience. From slips to service, Holly Acres truly has it all. Family-owned and proudly serving Northern Virginia.