You will make the discovery of how easy navigating by yourself is. Where you are is vital. Symbols are dealt with and plotting and magnetic etc. Old seafarers used the seem techniques as explained in these materials. The art and science of navigating by yourself is free.
Health is everything and paramount when enjoying the great blue.
Where you are is vital. This is a new international knowledge base. Famous yachtsmen used these techniques before you. You will have results fast and love the idea of finding your way by yourself. Yet, you don't have to pay any money.