Amazing. It’s easily accessible as a day trip from Tokyo, and totally worth the trip. It’s in a much more remote area and a good escape from the hustle and bustle of the city. The climb up isn’t too bad, and the views and the peaceful temple at the top are totally worth it.
I came during winter, and braved the slippery, snowy, wet treacherous climb (then descent) to get to Yamadera. I was justly rewarded with beautiful views and the experience of having accomplished something special. It rained, then snowed, so I probably picked the worst weather, but the views are worthwhile seeing no matter the season. I couldn't access the closed trails but the rest of it was lovely.
Trains to get here are infrequent, so plan accordingly, and after you finish your climb, you should definitely reward yourself with a hearty bowl of noodles at a nearby place. There's a restaurant with 4.5 stars on google maps at the foot of the mountain on the shopping street - I highly recommend it.
This place has one of the most specular view but be prepared to climb more than a thousand of steps. It's very slippery when it's raining but it totally worth the climb. The view is a killer.
This picturesque temple has become one of my favorite locations in Japan. The journey up the mountain requires you to climbs countless stairs but the statues, carvings, shrines, and nature that surround you make the impending cardiovascular explosion worth every step. Once you reach the top you are treated to an astonishingly beautiful view of the valley. I went in November and the trees were all showing their autumn splendor.
If you are able to make the hour long train ride from Sendai, then you should seize the opportunity to make a lasting memory at this magical temple.