Once your internship is confirmed you can contact your host in advance. Suggest that you “meet over Skype”.
Be prepared for that call, make sure you have researched the company and know who you are talking to (LinkedIn is a good place to look!)
Ask who will be supervising you. Ask any specific questions you have, such as what you should wear, what time to show up on day one, and what preparation do they want you to do in advance.
You could ask if there is accommodation nearby, but remember they are employers not travel agents!
If you have lots of “silly” questions then you could simply ring the receptionist and ask them – that’s always a good way to have a nice ally on the first day.