Diamond Valley Lake Boating Guide
Metropolitan's Diamond Valley Lake and Lake Skinner are a delicate balance between fun and function. While they each provide Southern California residents exciting boating and fishing opportunities, they are, first and foremost, vital drinking water reservoirs. The water stored in the two reservoirs is enough to serve almost a half million Southern California families for a year. That's why Metropolitan keeps a close eye on any activity on the lakes and in their respective watersheds.
Recognizing the lakes' recreational value as well as the need to protect water quality and guard the health and safety of the public, Metropolitan's board of directors adopted boating rules for both Diamond Valley Lake and Lake Skinner, which will become effective once Diamond Valley Lake opens. A summary of the rules follows.
We hope you enjoy your visit while you help us protect a valuable water supply for Southern California.
While Diamond Valley is a large lake, our east marina
parking lot is limited.
We have 250 parking spaces for vehicles with boats, another
50 spaces set aside for people who plan to rent boats
and another 50 for people who plan to fish from the shoreline
near the Marina.
The concessionaire has a limited amount of food for sale;
it is advisable to bring your picnic baskets with you.
Permanent restrooms are not available at the marina and
are not allowed on boats. There are portable toilets in
the marina and along the shoreline fishing area and floating
toilet facilities on the lake.
California Department of Fish and Game Regulations
A California Department of Fish and Game Fishing License is required for all anglers 16 years and older. Limits on the size and number of fish each person can catch at Diamond Valley Lake are set by the California Department of Fish and Game. Click here for a complete list of regulations and bag limits. You are responsible for knowing and complying with all Fish and Game regulations.
- NO swimming, personal watercraft,
water skiing, float tubes or body contact of any kind
- No smoking except in designated areas.
- Alcohol is not permitted at the marina or anywhere
on the lake, including the shoreline.
- Boats powered by humans, sail or electric motors are
allowed on lakes.
- Boats with four-stroke or direct fuel injection two-stroke
combustion engines are allowed, as are two-stroke engines
that comply with the California Air Resources Control
Board 2001 or later model year spark ignition marine
engine standard (or U.S. Environmental Protection Agency
2006 equivalent). This rule will be strictly enforced
and any questions regarding your engine compliance should
be resolved prior to entrance into the park.
- Traditional carbureted two-stroke engines are not
- Only gasoline free of the additive MTBE is allowed.
Boats containing MTBE fuel will be turned away. The
California Air Resources Board has reported that MTBE
was removed from all gasoline refined for sale in California
in Nov. 2003. Therefore, all gasoline must be purchased
in California and proof of purchase will be required
for boats with out-of-state registration. Refueling
is prohibited except in designated areas.
- Boats equipped with sink drains or flush toilets are
barred unless the drains and toilets are sealed, inoperable,
or are designed so that no waste can be discharged into
- Boats must be at least 12 feet long, 42 inches wide,
and have 12 inches of freeboard at idle speed. Multi-hulled
boats must have solid and fixed decking. Engine noise
must not exceed 75 decibels at a distance of 50 feet
with the engine running at 80 percent of redline RPM.
All engines must be unmodified, standard equipment.
- Kayaks and canoes, at least 10 feet long, non-bailing
and with seating for all passengers inside the boat,
are allowed. No sit-on-top kayaks are allowed.
- All boats must carry approved life jackets for each
person aboard. Type B fire extinguishers are required
on boats where a fire hazard could be expected from
the motors or the fuel system.
- Boat launching and landing is allowed only at designated
docks and ramps.
- Generally, the lakes open at sunrise and close at
sunset. The hours of operation vary seasonally and are
posted at the site. All boats shall be removed from
the lake one hour before the posted closing time. There
is no boat storage.
- Metropolitan can close the lake to boating at any
time and the number of boats allowed on the lake will
be determined by lake elevation, public safety considerations
and water quality concerns.
- The speed limit for all watercraft on Diamond Valley
Lake is 25 MPH. The maximum speed for boats within 200
feet of the shore, dams, other operational structures
and in marina areas is 5 MPH.
- Pets are not allowed within the recreation area or
We hope you enjoy your outdoor experience at Diamond Valley Lake and Lake Skinner while the Metropolitan Water District of Southern California continues to protect water at its source so you can trust it at the tap.