It is written Sakanaya Dojo. Sakana means fish. 道場 doujou literally means "place of the way" - it is usually the hall used for martial arts training.
73% of the territory of Japan is covered of mountains and forests. A small percentage of the land is used for human activities, so the spaces seem small here. However, each and every place is so cosy.
Noren with fish drawings and kanji below - you can check what noren is in the post on 20 August, which is actually the most viewed post on this blog.
Maguro 鮪 means tuna.
You can see few photos below that under the sashimi there is a layer of ice cubes, to keep it fresh.
Shouyu しょうゆ or 醤油 means soy sauce. The second kanji 油 abura means oil.
There are fish names below. All have the radical 魚 sakana, fish. For example, 鯛 tai - the sea bream or snapper; 鮎 ayu, freshwater trout; 鯵 aji, horse mackerel.
Apple candy received at the end of the meal. アップル appuru, though there is a Japanese word for apple, ringo.