About Revisions Millbrook Quarry Lat/Long: 38.8234,-77.704, Haymarket, VA (703) 698-7220 | More Info Max Depth: 81-90ft/25-27m Average Viz: 16-20ft/5-6m Entry Type: Shore Bottom Composition: Clay/Muck Aquatic Life: Might See Something Spring: Under 50°F/10°C Summer: 66-70°F/19-21°C Fall: 56-60°F/13-16°C Winter: Under 50°F/10°C 5/08/2017 3:38 AM 5/08/2017 3:31 AM 9/05/2016 11:59 AM 5/23/2016 4:06 AM 3/29/2016 3:41 AM 3/21/2016 4:03 AM 3/05/2016 10:00 AM 3/05/2016 8:26 AM 3/04/2016 9:19 AM 3/13/2013 8:45 AM LatitudeAdjustment 7/11/2010 6:18 PM

Lake Millbrook is a private park, open only to divers and their guests. Located in Prince William County, the park is only 30 minutes from The Dive Shop, and a short drive from anywhere in the National Capital region.

The spring-filled lake is well stocked with fish, and an abundance of surface wild-life, including beavers, turtles, deer and a wide variety of birds. Whether you are diving, or on a surface interval, Lake Millbrook is a beautiful place to enjoy the day.




"The" Dive Shop has added many underwater attractions to Lake Millbrook over the years, ranging from boats, to cars, to our very own "Space Station."
Lake Millbrook is open every weekend during the diving season, which typically runs from April through November. During the off season special Chilly Willy dives are run monthly.

Facilities: We have a shed which can be used to change clothes, and portable toilets (e.g., porta-potty). No food or running water is available on premises, but there are shops nearby.
All persons five years old and up are required to purchase admission tickets. Hours:
Last Entry by:
Last Dive by:
Saturday8:00 AM to 6:00 PM4:00 PM
4:30 PM
Sunday8:00 AM to 5:00 PM3:00 PM
3:30 PM
Closed Weekdays



Admission passes:
$30 at the gate or
$18 at TDS or
$15 each for 20 or more passes
Season Pass $175 if purchased prior to May 1, 2010. After May 1, 2010 the price is $200 Night Diving Available: June 26, July 24, August 21, September 25, and October 23.