Another category of mission challenges in Hitman 2 is exploration. Find specific items on the map; sometimes they are useful, sometimes not - but if you collect them, you will receive extra points at the end of the game. In the Hawke's Bay (Nightcall) mission, you only need to find 4 items.
Wood You Believe It?
On the coast on the height level of the house you will find a driftwood log (visible in the Instinct view). Pick it up (you can't hide it) and the challenge will be completed (and you will also receive a Blunt Trauma trophy). Note that this is not a bad weapon, cause it stuns and does not kill the target; but you cannot hide it.
Under The Mat
You will find it under a white vase in the swimming pool room. This key only opens the door from the pool to the house.
Don't Tread On Me!
Squeaky kiwi toy can be found in the bathroom below the window and next to Alma's bed - also on the same floor.
Discover Hawke's Bay
As the name suggests. Just walk through all the rooms in the house, don't forget about the roof either.