Unfortunately we arrived at Noumea on a Sunday which virtually renders this port a waste of time unless you want to go to the beach or on a booked tour. all the shops were closed including the duty free and pastry shop.
The ship arrives in the container port due to its size, but the ship had shuttle busses to get us to the tourist centre that other ships arrive at. the tourist centre had lots of touts selling tours and transportation to see things around the island. it also had stalls selling lots of different items, some cheap imports and some genuine Noumea made, or improved, items.
we got tickets for a hop on/off bus that took us along the coast line to the main beaches. there were other busses that went further afield - make sure you check where it is going before buying so you get what you are after.