Since jellyfish don't have legs, fins or even a tail, you might be wondering how they get around. The answer is no, not completely.
Jellyfish are able to move by using jet propulsion.
For the most part, ocean currents disperse them, but they are not completely helpless, and drifting isn't a bad thing. They use the currents to gather food, and little energy has to be used up doing this. They also use their jet propulsion to move up and down searching for food. Jet propulsion is used by sucking water into their bell and then pushing it out again. This makes the jellyfish look like they are pulsing in the water.