Although shops on Yakushima are rather basic, all the necessities can be found in one of the stores. Here’s the shopping delights.
MIYANOURA
Large supermarkets
LIFE CENTER YAKUDEN
ライフセンターヤクデン
ライフセンターヤクデン
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Close to the port, across the road from the Yakushima Environmental and Cultural Center. It has a little bit of everything from electronics to clothes to vegetables. 
WAI WAI LAND
わいわいらんど
わいわいらんど
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Opposite the hospital on the main road south out of Miyanoura. Mostly food but has a hardware section. Good for buying pre-cooked lunch. 
A CO-OP
A コープ
A コープ
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On the turn off to Shiratani Unsuikyo, this chain supermarket is a great place to pick up pre-cooked food, snacks and drinks. 
Large Souvenir/rental stores
FURUSATO-ICHIBA
ふるさと市場
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Close to Miyanoura port, this large souvenir store also rents bicycles and has a restaurant. 
YAKUSHIMA KANKO CENTER
屋久島観光センター
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This center is not only a souvenir shop but has equipment rentals, luggage storage, Ocean view campsite booking, bicycle rentals and lots more. 
KOSEDA
DRUGSTORE MORI
ドラッグストアモリ
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A large drugstore which sells a wide variety of things. Close to the airport. 
DRUG ELEVEN
ドラッグイレブン
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Drug Eleven is a mainland chain store near the airport and is a large and well-stocked drugstore. It also has a very useful 100 yen shop within it. 
SOME’S
サムズ
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A hardware store which also sells everything else. A very useful store.. 
ANBO
A CO-OP A コープ
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Very close to Anbo port, this chain supermarket is a great place to pick up pre-cooked food, snacks and drinks. 
ONOAIDA
A CO-OP A コープ
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The same chain supermarket can be found in Onoaida near the petrol station and is a great place to pick up food and drink.
KURIO
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KURIO
S MART Sマート
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This is the only convenience store in the south of the island and is right in the center of Kurio village.
For more information about Yakushima – check out the one and only Yakushima: A Yakumonkey Guide