Neptonics Bluewater Tuna Bungee

Overview

The Neptonics Bluewater Tuna Bungee is an elastic float-line bungee for bluewater spearfishing and fighting large pelagic fish. Its stretch provides progressive resistance during hard runs rather than the abrupt loading associated with a non-stretch line.

Core and sealing design

A continuous internal fiber core is spliced into the float-line plug rather than secured with a knot. The splice helps preserve the strength of the core compared with a knotted connection, while the plug seals the inside of the rubber bungee against water intrusion to help maintain buoyancy.

Fighting and rigging

The elastic body extends under load and maintains pull as a fish runs, applying resistance progressively while helping reduce sudden loading that can contribute to the spear shaft tearing free. The bungee can also be paired with a float-line clutch as part of a bluewater rig.