When Nature Calls: California’s Vessel Sewage Guide

When you gotta go, you gotta go. We’ve all been there before—it’s human nature. While it’s best to use an onshore toilet when available, properly disposing of boat sewage makes a difference in water quality and protects the big blue playground we all enjoy. Use this guide to learn how to keep our waterways pristine.

When Nature Calls is the official California State Parks vessel sewage guide. It’s a 14-page booklet that provides information about proper boat sewage management, Marine Sanitation Devices, how-to steps for pumping out boat sewage, no discharge zones and restricted water bodies, laws, and green solutions.

If you would like a hard printed copy, please contact us.