From Kyoto to Dynaland:
http://snow.gurunavi.com/guide/htm/r0231enm.htm
has been updated and now includes the bus instruction, rather than just saying a taxi.
By Train:
Nagoya Station→"Mino-shirotori" station on Nagaragawa line(3hr)→Shirotori Kotsu Bus(30min)→"Dainichidake" bus stop→Free shuttle bus(15min)→DYNALANDSo, forget about both cases of the taxi (1) and the Gifu Bus (2). However, there is no timetables for the free shuttle in that page.
The official site (the English site is not by dynaland...)
http://www.dynaland.co.jp/access/index.html#access03lists only four free shuttle buses for dynaland (ダイナランド). We could imagine they should be the first and the last ones, but how frequent in between?
On the other hand, here is the timetable for Shirotori Kotsu Bus:
http://www.shirotori-kotsu.com/app/download/12223699089/2015.10%EF%BD%...There are only six services in a weekday. Could we expect they should provide free shuttles accordingly?
Among which, one of the following three would be your choice.
Nagaragawa Train=11:53/Mino-Shirotori/12:00=Shirotori Bus
Nagaragawa Train=13:24/Mino-Shirotori/13:48=Shirotori Bus
Nagaragawa Train=17:21/Mino-Shirotori/17:50=Shirotori Bus
From Kyoto, you could take the first one, either by a earlier train or by a Shinkansen. Check it by yourself with GoogleMaps (using the option to minimize transfers):
https://www.google.com/maps/dir/Gion-shijo/Hokuno/In the above, I have used Hokuno in GoogleMaps, but you could take Mino-Shirotori as a transfer station. The difference is that it would be easier to take a bus form Mino-Shirotori because the bus is departing there, while you could gain a little money via Hokuno:
Mino-Ota/=1670 yen=13:24/Mino-Shirotori/13:48=620 yen=14:20/Dainichidake
Mino-Ota/=1690 yen=13:35/Hokuno/13:59=420 yen=14:20/Dainichidake
By the way, doesn't your hotel provide a picking up service? How about to ask your hotel on this issue?