Location doubletree downtown san antonio hotel is located in downtown san antonio 2 blocks from the shops of market square and 07 mile from the river walk the alamo is 1 mile away and the san antonio convention center is nearby hotel features at doubletree downtown san antonio hotel amenities include an outdoor pool and a 24 hour fitness center the restaurant with adjoining bar serves creative american cuisine for breakfast lunch and dinner courtyard seating is available by the poo