4 day trip: Kiso, Nagoya, Ise, Iga Ueno

Night 0: Tokyo-Nagoya by overnight bus

Day 1:
Nagoya-Nakatsugawa Eki by local train,
Nakatsugawa-Magome by bus,
Magome-Tsumago Hike
Tsumago-Nagiso Eki by bus
Nagiso Eki-Nagoya by local train
Sleep in Nagoya

*use Seishun Kippu

Day 2:
Antarctic Ship Museum
Noritake Garden

*How long would this two things take? Any suggestions for other things to see or do? (I've been to Nagoya before so I've done the Toyota Plant Tour and visited Sakae and the two temples.)

Sleep in Nagoya

Day 3:
Nagoya-IgaUeno by local train
Ninja Museum and Show
(maybe just the outside of Ueno Castle)
IgaUeno-Iseshi by local train
Sleep in Ise

*use Seishun Kippu

Day 4:
Ise Shrines
Mikimoto Pearl Island
Meoto Iwa
Iseshi-Tsu Eki by local train
Tsu-Tokyo by overnight bus

*Should I get the CAN bus pass for this day?

Any comment on this itinerary? Is this doable? Any suggestions about places to go to/things to do that I could add?

Thanks! :D

The attractions on day 3 will only take up a few hours (less than half a day). If you are able travel to Iseshi early enough from Iga-Ueno, you will have enough time visit the Outer Shrine (Geku) on day 3. This will make day 4 less busy for yourself.