1. 手桶   shell   shore   pail   sand castle   Hint Half-n-half Clue   2. 水泳パンツ   pail   swimsuit   swimming trunks   swim   Half-n-half Clue   3. 波   shore   sand   wave   pail   Half-n-half Clue   4. 波乗り板   wave   sand   surfboard   lifeguard   Half-n-half Clue   5. 水泳着   surfboard   sea   sand   swimsuit   Half-n-half Clue   6. 砂の城   sea   sand   shore   sand castle   Half-n-half Clue   7. 海   surfboard   lifeguard   sand   sea   Half-n-half Clue