2. When and from where did the Polynesians first begin to colonize the South Pacific?

Polynesian ancestors settled in Samoa around 800 BC, colonized the central Society Islands between AD 1025 and 1120 and dispersed to New Zealand, Hawaii and Rapa Nui and other locations between AD 1190 and 1290.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.