It happened back on March 27. The suspects broke into Duck Tours' amphibious touring vehicle in the 900 block of 33rd Street.
Officials say three men somehow scaled the side of the vehicle and entered through emergency exit on the roof of the bus. Once inside, the suspects sprayed a fire extinguisher and then stole it.
But on surveillance video, one suspect can be seen dancing during the break-in.
All three suspects appear to be young.
Anyone with information is asked to contact Galveston police.