What is this?

This log with these strange tube-like organisms washed up on the Plett beach in September. Any idea what it is? Maybe one of your readers knows? Andrew de Kock Fourways

Edʼs response: Weʼve found the answer, but we invite you to write to editorial@getaway.co.za and identify these organisms. The first correct response will win a Black Diamond Spot 350 Headlamp worth R950.