The WORST seasons of H2O: Mermaid Adventures

Every season of H2O: Mermaid Adventures ever, ranked from worst to best by thousands of votes from fans of the show. The worst seasons of H2O: Mermaid Adventures!

“H2O – Mermaid Adventures” is a combination of comedy, friendship and adventures, both on land in Dolphin City and in a marvelous and magical undersea world. The brand-new animated series is taking the original concept of the world-hit live-action series to a whole new level. While exploring the mysterious Island of Mako, three quite ordinary teenage girls fall under a spell that changes their lives. From now on, whenever water splashes any one of them, they are transformed into mermaids! Endless situations and missions draw the three friends into the incredible underwater world where they make new friends: Bernie the hermit crab, Zita the inquisitive eel, Teddy the kid turtle, Sue the mystical manta ray and Carlotta the diva-jellyfish – and have endless fun and wonderful, enchanting adventures under the sea.