Disappointed when:

• Barnacles have claustrophobia out of nowhere. If you watched the original episodes, Barnacles have been in tight spaces situations a lot and shows no sign of claustrophobia.

• Just by falling into a hole doesn't make you claustrophobic.

• Barnacles and Peso can only wait for Dashi and Kwazzi to rescue them.

• No heroic climatic action for Barnacles.

• Fee like an excuse for new GUPs to appear, which I can't even remember since it's so insignificant. What's the GUPs for, really? Toys?

• Barnacles was way too timid in this movie.

• Barnacles and Peso was way too risky to swim in a rocky underwater caves (Sac Actun) without proper equipment without properly contacting the Octonauts back in the base (They could really wait or swim back to base). Which is suicidal. Not a good move for two experienced divers.

• Underwater scenes (not counted in the caves) look worse in this movie. I understand the movies was done by a different studio, but be better.

• The pace was slow, and feel like its a short piece of script, but being dragged out to match the time enough for a movie.

Wonderful series for kids with characters from different countries all working together, accents included. This episode contains two iguana lizards voiced in a Cheech Marin accent warning the Octonauts that "not everyone who goes into the cenote comes out of the cenote".

My two year old is a die-hard Octonauts fan. She thoroughly enjoyed the movie, and loved the addition of the spulunking koala. I appreciated that they showed it's ok to be scared, but you have to find courage to overcome your fears (thanks Barnacles).