The Octopus is a type of amusement ride in the shape of an octopus. Six to eight arms attached to a central axis of rotation and move up and down in a wavelike motion via a counter rotating eccentric, while cars at the end of the arms, either attached directly to the arm or fixed on spinning crosses, spin freely or stay in place, depending on the exact type of ride. Each Octopus ride has the arms attached the middle of the ride. The middle or centric of the ride will move somehow. Most octopus rides require guests to be at least 42 inches to ride without an adult; smaller children must have an adult with them. This is a regular at the annual AGS and AHS fairs in Ateneo de Manila University

Linnanmäki is an amusement park in Helsinki, Finland. It was opened on 27 May 1950 and is owned by the non-profit Children's Day Foundation, which operates the park to raise funds for Finnish child welfare work. In 2023, the foundation donated €4.5 million, and so far has donated a total of over €130 million to this cause.