In golang, how to determine the final URL after a series of redirects?

So, I'm using the net/http package. I'm GETting a URL that I know for certain is redirecting. It may even redirect a couple of times before landing on the final URL. Redirection is handled automatically behind the scenes.

Is there an easy way to figure out what the final URL was without a hackish workaround that involves setting the CheckRedirect field on a http.Client object?

I guess I should mention that I think I came up with a workaround, but it's kind of hackish, as it involves using a global variable and setting the CheckRedirect field on a custom http.Client.

There's got to be a cleaner way to do it. I'm hoping for something like this:

package main

import (
  "fmt"
  "log"
  "net/http"
)

func main() {
  // Try to GET some URL that redirects.  Could be 5 or 6 unseen redirections here.
  resp, err := http.Get("http://some-server.com/a/url/that/redirects.html")
  if err != nil {
    log.Fatalf("http.Get => %v", err.Error())
  }

  // Find out what URL we ended up at
  finalURL := magicFunctionThatTellsMeTheFinalURL(resp)

  fmt.Printf("The URL you ended up at is: %v", finalURL)
}