1 - Dig at Earton Crossroads Sign.
You've Found Horse Isle Workbook Treasure No. 1: $2,000 and 5 Amethysts
2 - Dig below fountain on Horseshoe Isle.
3 - Dig to the left of the Sandcastle Moat on Ice Isle.
4 - Dig at the entrance of Nilan's Jungle Maze
Jungle Isle Stoneheads
These stoneheads are spread around randomly on Jungle Isle. If you dig around them, you will find various gems and money.
Dig below Earton Fountain (Also known as [Eli Grit's Treasure] quest)
Dig above the pond on Quiet Isle (also known as [Galvin's Adventure] quest)
Pots of Gold (PoGs)
Pots of Gold can be found on grass all over the game. You can get more than 10k from each of these. The longer it sits there, the more money it collects.
Leprechaun ($5,000 bonus)
Find 3 Pots of Gold to earn this award.
Lucky Leprechaun ($15,000 bonus)
Find 20 Pots of Gold to earn this award.
Pirate Treasures (PTs)
Pirate treasures are found only on beaches and are represented by a faint red X. PTs do not give as much money as PoGs, and are usually $100-$1000. The longer it sits there, the money more it collects.
Pirate Tracker ($5,000 bonus)
Find 10 buried pirate treasures to earn this award.
Pirate Stalker ($15,000 bonus)
Find 100 buried pirate treasures to earn this award.