Are there any Budapest Danube boat trips in early October.
Viator shows several. We took a private tour for 6 of us and really enjoyed it. The guide picked us up at our hotel, drive to several sights, then Sventendre for an excellent lunch. The only boat part was the return from there to Budapest. Double check the refund policy especially what happens if low water levels are occurring.
You can very easily do the trip with out a guide. I suggest that you limit it to 2 of the 3 towns because all 3 in one day is really just too much to enjoy. Depending on your choice you can do this with out a guide. Here is the boat company website https://www.mahartpassnave.hu/en/timetable/danube-bend-excursion-boat-lines/budapest-szentendre/
Just a trip to Szentendre is especially easy and enjoyable.
And quick answer is the boat runs till 27 October
If you want a guide, Ive known this guy over 15 years. Used him a few times, reccomended him often, always gets good reviews: http://www.guideinbudapest.com/