I'll be returning to Rome in May with some first timers and they want to see the Colosseum, and I want to 'skip the lines' and also see the Underground and Third Ring.
Some private tour operators are charging 70-100+ Euro for that, and if that's what I have to pay, then so be it.
However I heard about the CoopCulture site where I can book a full entrance ticket for 12E and then add an Underground and Third Ring tour for an additional 9E; for a total cost of 21 Euro.
My question is can I really book thru their site and for only 21 Euro skip the lines; AND get a group tour (25 people max) that includes Underground and Third Ring?
Thanks.