Located in Tucson in the Walmart shopping plaza in Midvale Park, Ombudsman Charter Valencia is an alternative charter high school that offers open enrollment throughout the year. Session times are from 7:30 a.m. to 11:30 a.m. and from noon to 4 p.m., giving students time for family, friends, work and school. Charter Valencia also has Saturday School from 8 a.m. to 10 a.m. nearly every week. The school offers a flexible schedule and accepts the transfer of existing credits.