Buying crabs in Hokkaido

I'm going to Hokkaido in May. May I know where I can buy crabs to bring back overseas? I will stay at Sapporo and Hakodate. I need to know should I end my stay at Sapporo or Hakodate since I will buy the crabs on my last day of holiday. Many thanks.

How do you plan to transport said crabs? They might stink up your luggage!

I bought crabs in Kushiro Seafood Market and have them send to Saitama by Takkyubin. The store packed in dry ice that was good for a few days. So tell the store how long the dry ice must last or repack with more dry ice later.

Possible or not depends on country by law of quarantine.

If send to Hong Kong,Taiwan,Singapore,Singapore or Viet Nam most areas.
by Cool EMS(Japan Post) or HOP1(Yamato) possible.
http://www.post.japanpost.jp/int/ems/cool/index_en.html
http://www.kuronekoyamato.co.jp/en/contact/
Some online shopping stores exist using same way.
http://global.rakuten.com/en/store/rebun/item/10009012/?s-id=borderles...
https://jugani-japan.com/hk/

Canned products are not so hard mostly.
http://global.rakuten.com/en/store/maruyasuisan/

Thanks all for your reply. I'm hoping they will pack nicely in a box for me to check-in for my flight home.
will try to check out the markets.