you won’t get the same quality as with an EOS, but for simplicity, a pocketable zoom camera is hard to beat, i think – maybe something like the Canon SX740 HS. it should be easy to pair it up with an iPhone. for more money, less zoom, but a better sensor, a Panasonic ZS200 might be worth a look, too. as with a lot (most?) cameras nowadays, these cameras don’t have GPS built in but can get GPS information from a linked smartphone.
here’s what the process for connecting the Canon SX 740 HS to iOS looks like: Connect your PowerShot SX740 to your iPhone via Wi-Fi - YouTube.