I think that as a "newly minted" PPL you will not be set loose in Nevada and certainly not without an FAA licence conversion which will take some time to get anyway. There are density altitude issues and there is a lot of restricted airspace and special rules over the canyon area. North Las Vegas is close to McCarron International and Nellis Military airport and it can get extremely busy with ATC vectoring you all over the sky. Settle for renting an instructor with the aircraft and getting some dual time. Try a landing at McCarron, a trundle down the taxi way to Signature FBO and then take off again requesting a route out over the Hoover dam. London Bridge is down at Lake Havasu. If you do fly in, providing that you fill the aircraft with fuel, the FBO will most likely let you borrow the pool car to drive down to the lake and bridge.