I was taking a walk in the wood nearby.

I took(went for) an excursion to (into:普段と違う事をする時）an ordinary mountain. It's called....
I explored this mountain along a small narrow stream till upstream with children.
We looked for crawfishes. but they were not there.
We enjoyed having a lunch box at mountain peak that is just about 200 meters high.
And also I aim to make family ties strong. Especially, the ties of brotherhood.