Most boaters like a freebie "” and we can get you one. Share Mad Mariner with three boating friends who register for a free 30-day trial and we'll send youa free stainless steel deck key.

Deck keys make it easy to open your water and fuel tanks, and have a habit of falling overboard. You can never have too many and they cost about $10 each at marine stores. So why not pick up a spare for no money down?

We make it easy for you to share Mad Mariner with a feature that allows you to select and invite friends directly from your email contact address book, or manually enter your contacts. You have complete control over the process, and it only takes a few minutes.

There's no obligation and no catch. We simply want as many boaters as we can to take a look at our magazine and we believe you "” our readers "” are the best people to carry that message.

So, tell some friends and get a free deck key "” the price is certainly right.