We were also considering which company to use or whether to just book with the hotel Concierge when we arrive.
I think it depends when you go re pre-booking. We are going at the end of this month so won't pre-book tours but if in high season July and August it might be better to pre-book as it gets busier.
We were looking at this company which someone recommended to us but take a look at the Things to Do page here on TA:
Hopefully someone who knows Croatia will see your thread here and can recommend a good tour company.
Thank you, bronia!
I'll be there from June 23th to 26th, which is *almost* July, and apparently it's national holiday in Croatia, so I think I'll end up pre-booking to be sure.
Atlas seems like a good company as well - so many excursions! Will look more closely into the optionsEdited: 13 May 2018, 23:56