I'm not sure about a UFO base per se.
But there are lots of UFOs and USOs seen and reported from Sea or near Coastal areas all over the Globe.
I think there is something to it.
Thanks for the Article Longhaircowboy.
Besides California ,
In the 1977 events on and around Colares and the Brazilian State of Belem most of the UFOs were documented by Operation Prato coming and going from
the Mouth of the Amazon near the Island of Colares.
The UFOs were documented originating from the Ocean at that point and working in tracks into the Amazon Basin from there.
This from the article reminded me of Colares.
Topanga Canyon has been a UFO hotspot for more than 50 years. However, on the night of June 14, 1992, hundreds of unidentified craft were seen in the
canyon, which is situated along the Southern California coast. Seventeen adult witnesses have independently reported seeing UFOs on that evening. One
couple, who live high on a ridge overlooking the ocean, observed approximately 200 craft rising up, one by one, from behind the ridge east of them,
and then moving to various locations in the canyon. As one of the witnesses said, “You know when you watch something for a while…you can figure
out where they’re coming from? After watching them, you got the feeling that they were going all over this area from that certain spot right
there.”
The Hessdalen Valley is not far from the Coast now that I think about it.
Observations of Unidentified Submarine Objects in Norway
[edit on 11-2-2006 by lost_shaman]