It is known among ardent fans of Ultraman that there are pictures taken at the ski field (Ishiuchi Maruyama Ski Resort in Niigata Prefecture) where the location shooting for the Woo episode was done back then showing the costume of Woo with an actor inside in the snow field. Not much is referred to and known about the details of these photos while there are no scenes in the show where Woo appeared in the human-size.
Moreover, It is likely that Dorako accompanied Woo on that occasion although the combination is really unexpected while we can see this Dorako was the costume before it was remodeled into Reborn Dorako with some horns added to the costume from Imora by Kunio Suzuki maybe just for pleasure. Suzuki also played Woo in the show although it is uncertain the human-sized Woo had him inside as well.
Even though the Dorako costume still looks neat, marks can be found where it was repaired in some parts of the costume especially in the ditch-like sections between the tile-like surfaces.
According to the caption for the top photo, it seems that an event was held in the ski field in February 1967 to celebrate the completion of Episode 30 (the Woo episode) with the costumes brought over there.
By the by, in the talk among the cast about this Woo episode included in one of the memoirs authored by Hiroko Sakurai (Fuji), it was also revealed that, on a location shooting trip apart from this Woo episode, Masanari Nihei (Ide) got so drunk that he got out of control rampaging at night to the degree that the other people had to tie him up with a rope and that Nihei smashed the door of his room in the lodge (after getting out of the rope) while Iyoshi Ishii (Arashi) ended up paying for the damage at the request of the lodge employee as Ishii added in the talk he still remembered the amount he had paid (2000 yen at the monetary value of the 1960s).
At any rate, it looks very odd somehow to find the human-sized Woo among people in the snow field because it makes it look as if an UMA or something actually showed up there with the smiling people including kids!