https://www.yachtingmonthly.com/archive/boating-abroad-what-you-need-to-know-4020
Boating abroad: what you need to know - Yachting Monthly
Nov 3, 2014 - Essential information for sailors heading for foreign climes
what you needboating abroadknowyachtingmonthly
https://www.rya.org.uk/boating-abroad/holding-tanks/
Holding tanks | Boating Abroad
Information about the legislation relating to the discharge of black water from holding tanks at sea.
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https://www.theboatinghub.com/
Find Sailing & Boating Courses Abroad Sail, Powerboat, Kayak, Dinghy & Keelboat Training
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