Resourcefulness
Competence
noun
かいしょう
甲斐 (かい) Effect, Result, Worth
甲斐性 (かいしょう) Resourcefulness, Competence
生き甲斐 (いきがい) Reason For Living, Something Worth Living For
やり甲斐 (やりがい) Worth Doing
改正 (かいせい) Revision, Amendment, Alteration
Using a kayak かい to cross a river shows しょう Resourcefulness.
He used a kayak かい for transport, shelter, storage, etc. in the Sahara desert to show しょう his Resourcefulness.