Ten cha soba is a kind of Japanese wheat noodles served cold on ice. It is known to be healthy and good for the skin. This kind of noodle can be flavored with Yam or Green tea. The one showing here is flavored with green tea and topped with shreds of seaweed to add its nutrition. The noodle by itself would be tasteless unless you serve it together with the broth/dipping sauce that comes with it.
Besides the cha soba, this dish is an innovation between Japanese and Western, grilled duck meat. The dish is complete with thin slices of duck meat grilled on a little bit of sweet sauce. Not sure what the sauce is, but it tastes quite good and is a very unusual dish.