Conditions
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
Royal City sits in Grant County, Washington, on the Columbia Basin plateau east of the Columbia River. Dive sites in this area tend to be flooded quarries or man-made pits rather than natural lakes, reached by local roads off the surrounding farmland.
AI overviewDurable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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