I have a short but interesting entry for you today – it’s the idiom to “be a walk in the park”. We use this idiom when we want to say something is easy. For example:
Installing this new computer system will be a walk in the park for me. I’ve done it many times before.
A: How was your test? Was it difficult?
B: No. It was a walk in the park because I studied really hard for it.
Can you give us a presentation about economics? That should be a walk in the park for you because you majored in economics.
I took a Spanish class last year. I thought it would be a walk in the park because I know French, but it was really difficult.
So, I’m not sure of the reason why we use “walk in the park” to mean “easy”, but I suppose it’s because walking in a park is considered to be an easy and relaxing thing to do.