Sunny Nails & Spa serves Santee's eastern Mast Boulevard corridor from 9844 Magnolia Avenue, near the Magnolia-and-Mast intersection. The service menu spans gel manicures, acrylic extensions, dip powder, and custom nail art alongside a dedicated waxing suite, consolidating multiple grooming categories under one roof in the same multi-service mold as Studio Mars Spa on Cuyamaca Street. Hot-stone pedicures apply heated basalt directly to the arch and heel during a 15-minute lower-leg massage integrated into the soak-scrub-polish cycle. The studio stocks over 200 gel-polish shades including color-shift chrome and holographic finishes, a selection depth that draws clients from across the Mast Boulevard corridor where F45 Training Santee anchors the Magnolia Avenue fitness block. Technicians apply ombré and chrome-powder nail art over a cured gel base using a sponge-gradient technique and mirror-finish rubbing method that produces a reflective sheen calibrated to each client's chosen metallic tone.