Ukraine Highlights
Chernobyl
For the love of God, do not take selfies here.
What to Consider If You Plan On Visiting Chernobyl And Is It Safe?
How To Visit Chernobyl: The Ultimate Guide
Visiting Chernobyl – How To Stay Safe
Solo East – The most popular company to go with
Odessa
Another Free Walking Tour (I didn’t do this one so cannot vouch)
Things to do in Odessa, Ukraine
A History of Odessa in 10 Dishes
3 days