I did two REI travel bike tours, Prague to Budapest and Lisbon to Granada.

The Prague to Budapest one had less climbing of the two. Everybody in group rode the full route. The bikes had a small back rack, I brought from home a small pannier that came in handy to carry my rain gear, etc.

The Lisbon to Granada one, they provided GPS units that had the track built in so you could easily see where each turn was which made staying on course easier. But this route had serious hills. There were a few people that sag wagoned parts of this route due to hills. The bikes did not have racks but had a small handlebar bag. But the bag was too small to hold rain gear, I got totally soaked one day.

I enjoyed both trips. I went early and did sightseeing for a few days before each trip, that also gave me time to get my time zones straightened out. I asked REI which hotels they used at the start and end. Made my own reservations for the extra days, several in the group did the same.

If you do the REI trips, get an REI credit card. You get a 5 percent kickback on purchases at REI which includes travel. I think that REI might cancel trips if they get less than four signed up, so if you go on one, verify that first so you do not get a plane ticket for a trip that gets canceled.