
1) Festival in Japan
Found on
https://www.crosswordclues.com/clue/koinobori

Children`s Day takes place on May 5, the last day of Golden Week, the largest break for workers and also a week in which businesses usually close for up to 9–10 days. Landscapes across Japan are decorated with koinobori from April to early May, in honor of sons for a good future and in the hope that they will grow up healthy and strong. A typic....
Found on
http://en.wikipedia.org/wiki/Koinobori

A carp banner, popular in displays on boys' day. The banner may have carp on it or be in the form of a carp shaped windsock
Found on
http://www.wafuku.co.uk/glossary.htm
No exact match found.