To which Mulinder replied: "Haha yup that's me. right place wrong time".
As they chat about the seal, it can be seen surfacing next to Mulinder's kayak, before launching out of the water, prey in mouth, to deliver an almighty slap to the Kiwi.
"I'm not sure who got more of a surprise the seal, the octopus or me", he wrote on Instagram.
"We are all adventure guys but we don't encounter that every day!" The friend described it as a day to remember! The octopus subsequently attached itself to Mulinder's kayak and had to be pried off, according to reports.
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I think with the way the conditions are, especially with the rain that's forecast, I can't see the scoring being any different. Schauffele has just two bogeys to 15 birdies on the week, and leads the field in putting through 36 holes.
The seal then disappears back into the water before going on to dive in between other kayakers. The slap in the face was probably a once-in-a-lifetime occurrence, but seals often thrash around octopi before eating them, so the animals weren't doing anything out of the ordinary, Network 10 reports.
Since the video was posted online it has become a viral sensation.
"The insane part was it was still alive, and then it grabbed on to the kayak. the video shows it's alive and it's not giving up", he said.
"My Uber driver who just brought us here just goes "you're the guy, you're the octopus guy", Mulinder told Network 10.
He told Yahoo 7 News that he and his kayaking buds had been watching the seal and the octopus fighting for quite a while.