For the Family: Boo-Cycle Fest Cole Park | 10 AM Main Street | 11: 30 AM Downtown Trick or Treating Downtown Alamosa | Starts at 11 AM 10 th Annual Fright Fest National Guard Armory | 4 PM - 7 PM Halloween Parties: 4th annual Halloween Party Knee Knockers | 8 PM - 12 AM Costume Party The Sanctuary | Starts at 8 PM Halloween Costume Contest Bank Shot Sports Bar | 12 PM - 2 AM Halloween Party Luchas | Starts at 9 PM Haunted Warehouse 701 San Juan Ave in Alamosa | 7 PM - 11 PM