It will be overcast but not rainy at Mare Island. We'll see you there. You can find a map here.
Directions: Go north on I-80 until the I-780 exit. Don't take 780, but as you exit stay on the frontage road until the second exit. Go west onto Curtola Way. Take Curtola until you get to the water. The road bends to the right and becomes Mare Island Way. Stay on that until you see the Mare Island Causeway (the bridge). Once across the causeway, turn left onto Railroad Ave. The first turn is Nimitz, then Railroad near the end of the causeway. About a block and a half or two there is a street named "Pintado" with an empty parking area to your right. The small sign is blue. We don't know of any public bathrooms on the island. Bring your own water, and your cell phone in case we miss each other.