Siccar Point

So this is the famous "Hutton's Unconformity", where sediments of ages millions of years apart are deposited right on top of each other. This was a perfect example of time can be represented by gaps in the geologic record. He is famous as saying "The present is the key to the past", that is, processes happening right now, wave action on beaches, eroding mountain sides, have been happening for millions of years, and can be seen in paleoenvironments (rocks). 

The rocks were at the bottom of a very steep cliff.

If you can make them out, there are some people at the bottom, near the center of the photo. Our class was about 60 kids, and it was a ridiculous site to see us all tramping and slipping down the hillside.

But it was cool to be there. This image is looking southwards down the coast. 

Our last stop for the weekend was on a beach near a golf course.  That is the club house.