Your travel itinerary ought to include a walk through University of Papua New Guinea. It's a well-known local institute with a vibrant campus.
This modern university is free to enter, which is welcome news if you're watching your pennies. University of Papua New Guinea is located in Port Moresby. When you're finished, Rouna Falls, Port Moresby Golf Club and Port Moresby Nature Park are close by and also worth checking out.