If you’re looking for a different kind of charter, take a look at the Douro River in Portugal. Ellen and John Goncalves, a cruising couple from Valparaiso, Florida (where they’re Harbor Hosts for the America’s Great Loop Cruisers’ Association), recently cruised the Douro on a Greenline 33 for 260 miles and loved it. They cruised the length of the river from Porto, on the Atlantic, to Spain and back, running ten days through ten locks (five each way), including the Carrapatelo Lock, one of the deepest in the world, with more than a 100-foot vertical drop (see the video below).…