You should say:
Where you went
Who went with you?
Why you went there
and describe some things you saw and did on your trip.
A few days back, we went to (…tell a name of a place that you would like to talk about…) on an official trip. This trip was arranged by our office and all of our colleagues and some of their relatives went there. As it was an official tour and I had been thinking about going to such a trip, I agreed to go. The place was a good picnic spot and historically important. I have had plans to visit the place and when I heard that an official tour has been arranged there, I simply agreed to go to the trip without giving any second thought.
On the trip day, all of the participants met at our office ground and took our seats on the bus. It was about 3-4 hours journey and at 11:30 am. We reached the spot. We visited the small museum there, took bath in a pond, ran through the narrow roads and bridged, climbed at small hills, played cricket, took photos, took our meals, arranged a singing competition, raffle draw program and many more interesting things there. We saw historical significances and a documentary on a wide screen projector arranged by the governing authority of the place, we visited a small museum, and we saw fishes in the rivers, birds on the trees and many eye-catching sceneries there. We stayed there the whole day and returned home after the evening. That was a good trip that I really enjoyed.