I believe the best sigh seeing experience - well that one is hard because there are many - however, I really enjoyed a travel along the cost towards Lancelin. An array of different landscape and views. Definitely the best day trip!
Last year as a birthday surprise, my family sent my parents on a helicopter tour with Heliwest, and they were absolutely blown away by the trip. A few months later, white knuckled, I was lucky enough to be invited along with a friend, flying ovr the city and up the coast - it was spectacular and unforgettable.
I love sitting at the view out on Welshpool Rd, Lesmurdie. And there is a sneaky off road one close to Lesmurdie Road heading downhill. It perfect for a picnic at sunset, then driving down the hill at night is spectacular.