Visiting first ime Tallin Nov 25th to 27th (Tallinn)

Hola
Is there any recommendations while I am visiting your city and any short trips recommended outside of the city?
It will be a really short in Tallinn, then after Riga for another 3 days.
Please feel free to get in contact with me and join me if you have time.
I will be with a good friend from Panama as well and we are staying in Old Town.
Thank you
Ruben