One man relay style just like sprint camp - triple forked hub. Mass start at 6:45. Lotsa fun.
Bring a headlamp and whistle - there are some dark corners on the last part.
Meet under the west awning of the Acadia Park commons block - see the map pin. There's parking on the eastern side of the commons block (might require payment - some free options are around, but usually taken).
I am putting out a few SI units for timing, so bring your SI stick if your have one.