Collect a Hard Hat to get into the Secret Cave.

Once you’re in, it may be dark, so throw snowballs at the machine to light the place up.

Now wear your Hard Hat and start digging in the dirt area to find the four pieces of the Amethyst Pin.

Once you’ve collected the pin, click the boulder on the right side of the Cave to enter the Lake Room.

Here you can buy a Diving Suit.

Go down into the water to enter the Underwater Room!

You can collect the Coral Reef Background here.

Video will be posted later. See ya!

~Lorenzo Bean