The Seahorse is an underwater animal that was first found in the Underwater Room during the Cave Expedition 2010, and has remained since the reopening of the Underwater Room. It is positioned in a way allowing you to walk behind it (and be completely hidden), pretending you are the seahorse. Not much is known about it except that it is orange and small.
There is a cardboard cutout of a seahorse in Underwater Adventure. The only other seahorse can be found in one of Club Penguin's wallpapers.
- If you hover your mouse over the seahorse in the Underwater Room, it will blow bubbles out of its snout/mouth.