Around Alphaland in a Day

Alphablocks A and B must race around Alphaland before sunset. After a good start, they run out of breath and need to take a taxi CAB. A puncture causes them to transfer to a BUS. They reach the beach, then they take an underwater SUB to cross the bay. The ground is rocky on the other side, so they ride a YAK up a mountain to within sight of the finishing line. The yak stops because it is hungry. Will they make it in time? Yes, if they RUN! ?