I found one and purchased it to test it out.
Map doesn't display as you need an api key.
After installed your supposed to by able to edit the module but arastta doesn't seem to allow it. The edit button is missing.

Thanks.

There are various OpenCart extensions from third-party developers to embed a map on the contact page.

It would be easier if there was a map module for Arastta.

Please provide link for t.ex.

If you fill in the stores geocode in settings, it will display a map button on contact page: https://demo.arastta.no/information/contact.html

If you want to display the Google map directly there is several guides, like t.ex. the official one. You can t.ex. simply add it to a info page or the html module: https://developers.google.com/maps/documentation/javascript/adding-a-google-map

And probably also OpenCart extensions that might fit: https://arastta.org/docs/developers/opencart-compatibility

Thanks.
I was referring to more like a map module as in Open Cart:

GOOGLE MAPS MODULE - Show your store location

You can edit the html content on the block that says "See Map".
Redirect the button to take the customer to a new page of google maps showing your location.

Like this for an address: https://www.google.ca/maps/place/19+moores+beach+rd,+pembroke,+on+k8a+6w2/@45.7694436,-76.951757,17z/data=!3m1!4b1!4m5!3m4!1s0x4cd13f8739e17ebd:0x84f5032440d3fcf2!8m2!3d45.7694436!4d-76.9495683

Like this for the business: https://www.google.ca/maps/place/valley+beekeeping+supplies/@45.7688588,-76.9529653,17z/data=!3m1!4b1!4m5!3m4!1s0x4cce05acac0123bf:0xde6293be71f715b9!8m2!3d45.7688588!4d-76.9507766

Just go on google maps and search your location. Use that url provided after the search.