In Hawaiian mythology, Laka is the name of a popular hero from Polynesian mythology. (In other parts of Polynesia he is known as Rātā, Rata, Lata, Ata, or Lasa). Lengthy legends of his exploits extend throughout the islands, and the kings of Tahiti and Hawai'i claimed him as their ancestor.

The Laka Foundation are Dutch anti-nuclear and anti-DU campaigners

a hollowed-out tree trunk