Description in photo attachment page

Hi There.

I’m using the Fukasawa theme for my photography website/ blog. I have added a few image gallery’s, and the photo’s link to the attachment page. However the attachment page only shows the image and the caption. I would like it to also show the description. Can someone tell me how I can achieve this? I’ve tried a few things that Google has given me but they have broken my site.

Thanks in advance