The beach is public access, meaning your quiet walk could be easily be interupted with offers you are not ready to hear or respond to.

If guy offers to show you his puppy, he is NOT talking about a baby dog. It's the dialect for something else:-(

Spend an afternoon on the cliff and enjoy an amazing sunset

Don't say NO THANK YOU, if you don't want something. Say NO and keeping walking because every word after NO could be interpretted to mean something else. Really, if the answer is NO, what are you thanking me for...lol!