Tecate is the quietest of Baja California's big border towns, sitting across from rural eastern San Diego County rather than the sprawl of Tijuana. It is still a working crossing, but the centre has a calmer rhythm: shade trees around Parque Miguel Hidalgo, bakeries selling pan dulce, and the old brewery name that made Tecate known far beyond the border.
The town makes most sense as a slow Baja day rather than a checklist stop. You can visit the Tecate Brewery, look into Kumeyaay and ranching history at the Tecate Community Museum, and then drive east into the boulder country around La Rumorosa for the rock art at El Vallecito.
Tecate's strongest identity is the meeting of border town and mountain town. The sacred Kumeyaay mountain Kuuchamaa, known in English as Tecate Peak, rises near the line, and the dry hills around town have a different feel from the coast. It is not a substitute for Ensenada or the Valle de Guadalupe, but it is a worthwhile detour if you want a less frantic version of northern Baja.