Before traveling check your travel insurance. Do so in plenty of time to renew it if necessary. Read the small print carefully. Make sure it covers all medical expenses including repatriation. Make a separate note of the insurers hot line number. If you find it necessary to make a claim, do so immediately on your return home. Failure to do so may invalidate your claim.
This tip is provided by supplier M15075
My "Berlin Through The Ages" tour takes the visitor to the most important historical sites. The tour is predominately a walking tour but utilizes public transport too.