What are glowing spots with the Mask of Truth?

zelda-majoras-mask-3d

Put a bomb down, they are secret grottos.

Related

How to get more dwellers fast
Giant gravestones in Forbidden Woods
How am I playing on the installation disc?
New Recruits achievement not awarded in Assassin's Creed Origins
What exact time of the day does the Golden vendor in Cyrodiil appear?
Do different fishing holes have different odds?
OS-specific joystick drift
How are you supposed to get Lockpicking 99?
How can I find my way out of a Jungle Biome? [closed]
Keep the Nether loaded
Bloodborne hunters fighting in central yharnam
What are all the ways I can gain SP?