I doubt we have spearfishes here.

Not sure about the gear you are talking about though.

The only places that sell fishing gears are along the street where AL Bustan hotel is. Also a couple of shops between Clock roundabout and corniche. Also one in Al Fardan's marine showroon behind the cinema (off C-ring road) and one is located in that shopping complex between Rayyan road and New Kahrabaa street.