I will be staying in San Francisco for four days in July, we will be 2 adults and 2 tweens. I am looking for a nice hotel with a pool. What area should we look in for a hotel? We will be using public transit and going to all the usual sightseeing places - Alcatraz, Golden Gate Bridge, etc. Any suggestions re location and hotel would be much appreciated. Thank you! Price range would be $250 - $ 450 per night.