I will never forget the night I spent atin the Sahara.

When I was twenty years old, I visited Morocco and Spain with my friend of high schoola high school friend of mine for two weeks.

You can also say, "with my high school friend."

We were really looking forward to joining the desert tour from marrākish, Morocco.

This city is usually referred to as Marrakesh.

It takes three days by bus to arrive at the desert.

This sentence is good, but you can also say "it took three days". This helps show that you are telling a story in the past, rather than describing the present.

During the bus trip, I got upset that some couples oftenkept kisseding each other.

I wondered whyhow they can beould be so indifferent to others, since people must feel embarrassed andto watch. People aren't likely to kiss in front of others in Japan.

The night has cocame soon after we arrived atin the Sahara. We enjoyed a dinner, and the sounds of ethnicsome local instruments.

Then, tour guides laid out everyone's bettdding directly on the ground.

We canould look uponat the starry sky while lying on the bed.

They let me know that the Sahara is popular among European people as a honeymoon destination among European people.

Overnight Stay AtIn The Desert

Because the desert isn't a specific place, you would use 'in'.

I will never forget the night I spent atin the Sahara.

We were really looking forward to joining the desert tour from mMarrākiakesh, Morocco.

It takesook three days by bus to arrive at the desert.

Since you are talking about the past, it makes more sense to use the past tense.

I wondered whyhow they can beould be so indifferent to others since in Japan, people mustwould feel embarrassed and aren't as likely to kiss in front of others in Japan.

I changed it to make it a little bit more natural. The main thing was changing the tense.

The night has comeNight fell soon after we arrived atin the Sahara. We enjoyed a dinner and the sounds of ethnic instruments.

'Night fell' is another way of saying that it became dark.

Then, tour guides then laid out everyone's bettdding directly on the ground.

We canwere able to look upon at the starry sky while lying on the bed.

I got acquainted with the dDutch couple during the tour.

Dutch is a proper noun, so it has to be capitalised.