This is a 3 hr tour with the volcano and the hotspring, there is another one which is for 6 hours including Theressia and free time for lunch.
The same tour is provided on other platforms like viator etc and even if booked directly with the tour operator
providing this activity at 25 euros but it costs here 34 as on top of the original price you have to pay 20% commission to freetour and 20% to the tour operator which is in between. I would avoid booking such tours from freetour here on.