The official Diamond Valley Lake web site

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Reservations are recommended not required because of limited parking capacity.

Click here to make online reservations.

For phone reservations please call
1-800-590-LAKE (5253)

Frequently Asked Questions

Are reservations required?
No. Reservations are recommended not required.

How do I make a reservation?
Reservations can be made two ways. You can call the Diamond Valley Marina at (800) 590-LAKE (5253), Monday-Friday from 10 a.m. to 6 p.m., or you can make reservations online anytime (starting 10 a.m. September 3) at

How much are reservations and how can I pay for them?
The reservation service fee is $5 per reservation and does not include the costs for entrance, boat launch or fishing access. All fees, including the non-refundable reservation service fee must be paid in full at the time of booking, by credit card: Visa, MasterCard, or Discover.

Can I reserve a boat through the reservation system?
Yes. All rental fees are payable in advance. A refundable $100 damage deposit is also required to rent a boat, payable upon arrival. You must be at least 21 years old to rent a boat.

How early do I need to make reservations?
Reservations must be made at least 72 hours before your scheduled arrival date.

How far ahead can I make reservations?
Reservations can be made up to 60 days in advance.

How many reservations can I make at once?
A maximum of four reservations can be made per call to the Diamond Valley Marina; a maximum of 2 reservations can be made online.

What if I have to cancel my reservation?
Cancellations must be made eight days prior to your scheduled arrival date. You will receive a full refund of fees, minus the $5 reservation service fee and a $5 cancellation charge. To cancel a reservation, call Diamond Valley Marina at (800) 590-LAKE (5253)and have your reservation confirmation number prior to calling.

What if I need to change my reservation?
You are allowed to change your reservation only once. Call the Diamond Valley Marina at (800) 590-LAKE (5253) at least 48 hours prior to your scheduled arrival date. Have your reservation confirmation number available prior to calling. A $5 reservation change fee will be assessed.

What if it rains?
We have no control over the weather. All reservations must be honored, regardless of weather conditions.

Can I pay for everything through a reservation?
No. The entrance fee ($7 per vehicle) and boat launch fee ($6) fee are paid in advance. You will be required to pay the $3-per-person fishing access fee upon arrival. If you would like to reserve a boat, your rental fees must also be paid in advance.

How can I use my coupon, gift certificate or senior discount?
If you have a coupon, gift certificate or would like to use a senior discount, we recommend making a reservation through the Diamond Valley Marina at (800) 590-LAKE (5253).

How much will it cost my family of five to fish at Diamond Valley Lake?
Assuming you are bringing your own boat, it will cost $5 to reserve a spot, $7 for the entrance fee, $6 to launch the boat, and $15 for fishing access fees ($3 for each person on the boat, assuming they all want to fish). The total cost is $33. Those renting boats (or fishing from the shoreline) do not pay the $6 launch fee, but still must pay the other fees.