From Toadwater Guide
The main reasons players dig a hole are to build an outhouse on it and/or to gather balsam fir seeds and compost worms. Note that digging deeper than 101 millimeters will not yield any more seeds/worms.
How to Dig
To dig with your hands, make sure you have nothing selected in your inventory. A quick way to do this is to select something new in your inventory twice (keyboard shortcuts are recommended). Then select the bare sand or hole as many times as you would like to dig in it. Using your bare hands makes the hole 1 millimetre deeper each time.
To dig with a shovel, select the shovel, then select the sand or hole as many times as you would like to dig in it. This method makes the hole [shovel level] millimetres deeper each time. For the first decimetre (100mm), you will dig up a variety of things.
If you eat Banana Peppers, you can get up to a 200% shovel effectiveness buff, allowing you to dig double the shovel's power in millimetres in a single use.
What you can find while digging
- Level 1 Seeds (Balsam Fir)
- Level 2 Seeds (Ponderosa Pine)
- Level 3 Seeds (White Fir)
- Compost Worm
- Maso Bamboo Shoots
- Golden Bamboo Shoots
- Rough Stone
How to Fill a Hole
There are three ways: