YVR is the most convenient airport to fly into, YXX has cheaper flights but there is no public transport and it is very far from downtown Vancouver. At YVR take the Canada Line directly into the city. There is only one line available and one direction/one platform. No need to buy tickets in advance as long as you have a tap form of payment. Tap your credit card or ApplePay directly at the gate. Otherwise ticket vending machines are at the station. Free transfers within 90 min, just use the same method of tap payment to tap in and out. There are 3 stations in downtown Vancouver: Yaletown Roundhouse, Vancouver City Centre and Waterfront, depending on where you are staying.
There is limited parking at the venue lot and street parking in the surrounding area. Otherwise, Hycroft Manor is a 10 minute Uber ride from downtown. For those taking public transport, the #10 bus stops near the venue, get off at Granville st and W 15th ave.
There is Uber and Lyft in Vancouver along with conventional taxi's. Otherwise skytrains are the most reliable form of transit and the Canada Line should get you most of the places you'd want to go. Buses have fairly regular service and will bring you further west to places like West 4th st. and UBC, or to Granville St. south of the bridge which has great shops and restaurants as well.
False Creek Ferries and Aquabus are two different companies operating small ferry boats in the False Creek region. They are similarly priced, with tickets between $4-12 each way depending on how far you are going. The stops span Olympic Village to Kits beach (only on False Creek Ferries, get off at Maritime Museum station) with stops in Yaletown and Granville Island in between. A fun experience and short little boat ride. You can buy tickets after getting on board with credit card or cash.