For the first time, Happy Island
has released a marine vehicle that isn't a premium -- the new Salvage Ship
. Offered for a thrifty 2,400 Coins, it's cheaper than most of the island attractions. After purchase, the Salvage Ship will be in your "My Stash" (a.k.a. storage chest), where you have the option to sell it for 1,200 Coins -- but don't! Because once you figure out how it works, it can rake in big rewards.
Each person is limited to one Ship. You can use it once a day to possibly bring back coins or rare items... now here's where it gets tricky, especially for new players used to tending to a single island. To use the Ship, you must switch your game window over to "Archipelago View".
To do that, click on the globe on the upper right corner of your screen. When you get there, open up "My Stash", click on the Ship, then click "Place" to put it near one of the islands that you own. Click on the Ship again, and you'll get the option to "Salvage".
Immediately, a window should pop-up telling you exactly what the Ship has found. In my case, it was 1,000 Coins.
If you want it to search some more, each additional chance to "Salvage" will cost you 2 Facebook Credits, or what's essentially $0.20 USD. (But if you're willing to spend real money, you should grab yourself the Undersea Explorer
the next time it resurfaces.)