Porsche 64 >> Monterey, CA >> Monterey Bay Aquarium >> freshwater >> freshwater fish >> piranha
5 clicks, prolly a way to do it w/ 4 but i couldn't find it

ack, i missed one:
Porsche 64 >> Monterey, CA >> Monterey Bay Aquarium >> aquarium >> freshwater >> freshwater fish >> piranha
so, 6, however:

Porsche 64 >> Monterey, CA >> Monterey Bay Aquarium >> aquarium >> list of freshwater aquarium fish species >> piranha

so back to 5 again