summer

I/ have been spending/spent this summer in(where)? working on my thesis. It's almost finished.
I also had a journey with my family. It was full of funny happens happenings.

You could also say It was a lot of fun if nothing strang tooke place in duration of your trip. Happening refers to slightly strang events but if you meant that, It's ok

I had a family holiday which was full of funny happenings. Funny could also give the implication of something strange, so you need to clarify what exactly your trip was like, funny strange or funny haha?

Corrections to my correction would be appreciated!