We did this in October of '22. It was quite a walk to get there, and 15 minutes sounds close. I remember commenting to my DH that this trek could've been deceiving to some people, and I hoped they were adaquatly warned. It must depend on where exactly Hornblower docks. đ¤ˇââī¸
Unfortunately, we had a cool, foggy day, and they ended up cutting our tour short, but offered the next one for free (different direction, so no fog.) I'd give it another try, but I was not impressed that day, lol.