To find large temple ( first and second temple ) from spawn you just need walk straight ahead until you will see the river, cross over it and soon you will see large temple.
To find the treasures are hidden in the secret room, please walk in the video below ( it located in the center of the temple). Destroy the center block an will find the treasure, but careful with the deadly TNT trap.
Your reward after explored three temples:
- 34 gold ingots
- 3 diamonds
- 4 emeralds
- 2 iron ingots
- 19 rotten flesh
- 36 bones