Holland Riverside Marina
Launch Conditions
Use cautionLaunch with caution — limited daylight.
- Advisories
- None active
- Daylight
- Past sunset (8:15 PM)
Live from the National Weather Service, USGS, and NOAA. A guide, not a substitute for official forecasts and your own judgment.
Launch Light & Moon — August 1
local timeWaning Gibbous (85% illuminated). Good fishing outlook — the moon is approaching a major phase.
Location
Quick Facts: Holland Riverside Marina
| Location | Discovery Bay, California |
|---|---|
| Waterbody | Old River |
| Access Type | Private |
| Rating | 4.2/5 (147 reviews) |
| Coordinates | 37.972773, -121.581783 |
| Hours | Check on site |
| County | Contra Costa |
| Phone | (925) 322-4084 |
Holland Riverside Marina is a boat launch providing access to Old River in Discovery Bay, California at coordinates 37.97277, -121.58178. Rated 4.2/5 based on 147 Google reviews.
Holland Riverside Marina is a private boat launch on Old River in Discovery Bay, Contra Costa County, California. This is a private or restricted facility — confirm access requirements, fees, or membership before towing out. This page shows sunrise, sunset, and moon-phase times for the launch, updated automatically. There are 6 other mapped boat ramps within about 15 miles if conditions here aren't right.
Related: boat ramp near Discovery Bay • public launch in Contra Costa • fishing access on Old River • California boat launch
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Frequently Asked Questions About Holland Riverside Marina
Is Holland Riverside Marina free to use?
Holland Riverside Marina is a private facility. Contact the operator for access information.
How is Holland Riverside Marina rated?
Holland Riverside Marina has a 4.2 out of 5 rating based on 147 Google reviews from boaters.
What water does Holland Riverside Marina access?
Holland Riverside Marina provides boat launch access to Old River in Discovery Bay, California.
How do I get to Holland Riverside Marina?
Holland Riverside Marina is located at coordinates 37.972773, -121.581783 in Discovery Bay, California. Use the "Get Directions" buttons on this page to navigate with Google Maps or Apple Maps.
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Alternative Boat Launches Nearby
The area surrounding Holland Riverside Marina includes 6 other public boat ramps within 6.9 mi, giving boaters flexibility in choosing their access point.