Most temples dedicated to Lord Subrahmanya present him as Kartikeya the warrior — the commander who led the celestial armies against Tarakasura. Kukke is different. Here he is worshipped together with Vasuki, the king of serpents, and it is that pairing which has drawn devotees to this corner of Dakshina Kannada for centuries.
Understanding why explains almost everything else about the temple: why people travel here specifically to perform Sarpa Samskara and Ashlesha Bali, why a pillar stands between the visitor and the sanctum, and why pilgrims bathe in the river before they enter.