Messages in bottles at Yolk Atoll now hold treasure maps. Find the X, dig up a chest, and find out who the Captain was.
Digging - find the X on the sand, aim at it and click: three strokes of the spade, and a chest comes up out of the sand.
The Golden Bobber - the first treasure goes straight on your line, and twinkles while it floats.
Two more treasures - a ship in a bottle for your house, and one somebody has been looking for for forty years.
Treasure tab - the tackle box lists what you've found and switches the Golden Bobber on and off.
House trophies - the treasure chest and the ship in a bottle, under Catches.
Bottles - bite twice as often while a map is waiting for you.
Old Yolker - has hints about where to dig, if you click him while you hold a map.