Sitting on the edge of the Oregon coast near Cape Perpetua, a gaping, seemingly bottomless
sinkhole swallows the unbroken stream of seawater around it. Thor’s Well, as the natural wonder is
known, is not actually bottomless. It is, however, very dangerous.
Also known as the drainpipe of the Pacific, the well is actually a hole in the rock that only appears to
drain water from the ocean. According to some researchers, the Well probably started out as a sea
cave dug out by the waves, before the roof eventually collapsed and created openings at the bottom
and top through which the ocean sprays. The huge hole is likely only around 20 feet deep, but it still
manages to produce amazing sights. (Not for the faint of heart, however!)
The site is most spectacular at high tide, or during storms when water washes violently over the
rocks and funnels into the hole. The best time to visit Thor’s Well is one hour before the high tide to
see it without water and then observe how the formation fills
up.
https://www.yachatsoregon.org/DocumentCenter/View/146/Cape-Perpetua-Area-Map