Hint: Day at the lake
The answer to this puzzle is:
1. KAYAK
2. DUCK
3. BICYCLE
4. ROWBOAT
5. TURTLE
6. SAND
7. FOOTBALL
8. PICNIC
9. MUSIC
10. GRILL
11. HOTDOG
2. DUCK
3. BICYCLE
4. ROWBOAT
5. TURTLE
6. SAND
7. FOOTBALL
8. PICNIC
9. MUSIC
10. GRILL
11. HOTDOG