If you are an introvert traveling, I strongly recommend lots of reading. Bring a nice camp chair (I have tried several, my current favorite is the Helinox Sunset with rockers and a small camp-stool-turned-ottoman) and sit in the shady spots in parks. Find the best library reading rooms, museums, etc. and just read. Draw if you’re into that.
Negotiate this time with your extroverted traveling partners if necessary.
Negotiate this time with your extroverted traveling partners if necessary.