Teresa Giudice Hits Beach in Mykonos as Honeymoon Continues NhungD

   

Teresa and Luis have spent a lot of time on the sand and in the surf of Principote Beach -- we got pics of them out earlier, and she was wearing a different bikini ... so she must've done a wardrobe change at some point.

Eyewitnesses said they weren't really bothered by those around them -- it's unclear if anyone even recognized them, but all the better.

The sunny retreat comes just one week after they tied the knot ... saying "I Do" in front of 200 family and friends.