Hey Steve,
We have sailed South Pacific many times. First time was Lima to Tahiti; second time Tahiti to Auckland. Then we took a post-retirement leap to do half of the world cruise (HAL), which was 51 days, the beginning part of it in that area. We do love our sea days, so our best best cruise was 90 days (HAL) -- San Diego to Sydney followed by circumnavigation of Australia; then switched ships to sail back to San Diego. This will be our first time in Viking.
Cheers, Robert.