Not worth a 5 hour trip. It is okay if you are in the area or driving by. Easy enough to get to the beach from the parking lot - a short walk, then down a steep hill. Most able bodied folks should not have any issues.

Yes, I think it's fine as long as you leave the beach as you found it. It was fun to explore and search for the glass bits and interestingly shaped rocks worn smooth by the ocean and sand.

No stairs. If you walk from the parking lot and go to the left, it all coastal trail that leads back to the bay. If you go the right (dirt path) you’ll have to navigate down the hill side in a number of places to make it to the beach.

This location was the city dump for garbage of all kinds-glass, metal, cars, tire and everything else. time has reduced all of the garbage to small pieces of glass, rusty metal, etc.

Sadly, it's all been taken!

Glass Beach has many coves. The main cove is 5 or so minutes from the parking lot. But to actually get down to the beach, it is a scramble down a short, rough, make shift dirt trail. Not sure with your knee, if you could do it or not? The parking lot fills up quickly on weekends and holiday mornings. Things will quiet down after the Labor Day weekend. That's the best time of year to visit the Mendocino Coast.

The easiest access is down a path from the parking lot. It dead ends at a short downhill trail to the beach.

I don't know. It's a public beach; I don't remember seeing any signs that said no dogs, and I saw dogs being walked in the parking lot, but I don't know about the beach itself.

Yes..

No I do not believe so