
1) Fishing techniques and method 2) Underwater diving procedure
Found on
https://www.crosswordclues.com/clue/spearfishing

Spearfishing is an ancient method of fishing that has been used throughout the world for millennia. Early civilizations were familiar with the custom of spearing fish from rivers and streams using sharpened sticks. Today modern spearfishing makes use of elastic powered spearguns and slings, or compressed gas pneumatic powered spearguns, to strike ...
Found on
http://en.wikipedia.org/wiki/Spearfishing

sport of underwater hunting that became popular in the early 1930s and after World War II spread rapidly throughout the world. Targets of underwater ...
Found on
http://www.britannica.com/eb/a-z/s/136
No exact match found.