Sakanaya-san's Fresh Sushi 魚屋さんの新鮮回転寿司 横須賀

There are plenty of 100 Yen sushi places in town, and they serve their purpose. But if they are the middle school of sushi, then Sakanaya-san might be the high school.

Entrance under Yokosuka Chuo station

Sakana-ya is run by a larger "conglomerate" called Uoki which is a fish dealer, seller, and sushi restaurant operator. They are located right on the corner by Yokosuka-Chuo station and their restaurant and attached store always seem busy. Also find them on the blog map.
They are open from 0700 to 2300 everyday. Last order is at 2230.

I'm by no means a sushi connoisseur and the 100 Yen places meet my family's needs just fine. But there is a time and a place to step up and try some higher quality cuts. They have a good English menu from which you can order by number, or you can just take the plates off the conveyor belt. The prices vary and there are 10 different plates of varying colors. The cheapest is 100 Yen and most expensive 666 Yen. You can see the plate pricing guide on the wall in the photos below.

The shop sign is a great prop for reviewing some kanji.
魚 is sakana and means fish. Refer to the key food kanji.
屋 is "ya" and means house, shop, dealer, or seller. It should be familiar if you're paying attention to all the signs out in town. All together sakana-ya means fish market or fish dealer.
They've added "san" onto the name meaning Mr. or Mrs. etc.

Then we have 新鮮 "shinsen" which means fresh. The "shin" is the same as in Shinkansen, or Shin-Yokohama, or shinbun (newspaper) - it means new. "Sen" means fresh, vivid, or clear. Within "sen" 鮮 you should also recognize the fish kanji. The second part of it on the right side is "sheep."

回転寿司 lastly we have "kaiten sushi" - Kaiten sushi is the proper term for "sushi go-round." The purist and those trying to learn Japanese will use kaiten sushi. The kanji is interesting...
The 回 in 回転 means number of times, round or revolve and should be easy to remember. The "ten" 転 part might be a bit more difficult but perhaps you can see the "car" kanji in the first part of the kanji. It also means "rotate." So they individually and combined mean to revolve or rotate.

寿司 is simply "sushi." The kanji by themselves really don't have anything to do with fish or sushi, they are just used for their phonetics to get the word "sushi." The use of kanji in this way is called "ateji" in Japanese.