go to the palm tree where the guy's secret hideaway is, dig, and you'll see a hole. go in the hole, and you will be in his second hideaway. you'll see a path, follow it, and you'll see a door with a sun on it. That's where you use the sun key.
Go to molida island and go in the secret dig cavern you found earlier and open the door with the sun on it (with the sun key...)
its under water u need to find a map then get some claw then go where the map says you need to go then use the claw then you have it
find the sun key
you go to molida island.
Go to the moon, then the sun, you will soon find out.
There is no key. Go upstairs to find the painting.
you will find a picture of the sun, if you tap the sun it will say"press the sacred crest to the correct sea chart to transfer it. The temple will only open to the wielder of the sun key." That means you have to tap "sea chart" in the lower right of the screen. Then you close your ds and open it again. Then you leave and go to the spot in the sea on your sea chart where the green thing is and use the salvage arm. If you get the chest you get the sun key.
You tap the door where you need to go.(temple of courage)
you go to the green spot and use the salvage arm
You go to the temple of the ocean king and go to the next available floors and you need to go to the door and draw a hourglass on it. When you enter, you find a map with a symbol on it, close your DS, DS light, or DSi to give you the location of the key. Then eddo invents a salvage arm. get it, then go to the location on your map, use the salvage arm, pull up the chest and in it is the key. then you can open the door.
You can find the key in the river. Keep fishing until you reel in a key, (This is the same as when you find a tyre, can or boot.) Go to the resident who has lost their key and give it to them - in return they will give you a gyroid.
go to the ship go inside there is a door with a lock on it if find the key go to it and you get a pin thank you