Though Downtown San Bernardino may not have many top sights, you can venture to the surrounding area to see attractions like San Manuel Stadium and National Orange Show Events Center.
If you're spending some time in Orange Show, National Orange Show Events Center and Inland Center Mall are top sights worth seeing.
Oak Glen is well liked for its restaurants. If you'd like to do some sightseeing in the greater Yucaipa area, you might plan a trip to Wildwood Canyon or Momyer Creek Trailhead.
While South Redlands isn't home to many top sights, Mountain Grove Shopping Center and San Bernardino County Museum are some notable places to visit nearby.
While you're in Downtown Redlands, take in top sights like Paxton's Wine Cellar and jump on the metro at Redlands–Downtown Station to see more of the city.