Sure, that's completely acceptable in American English. For example:

I visited Thailand twice. Once in November and then again in April.

Sure, that's completely acceptable in American English. For example:

I visited Thailand twice. Once in November and then again in April.

(I'm incorporating the points from the comments into a revised answer)

You can use the simple past even if you remove the word "twice":

I visited Thailand. It is a nice country. You should visit it.

However, in American English, we typically use go instead of visit. Visit sounds extremely formal. So it would be:

I went to Thailand. You should go there, too.