If you’re in a hurry, you can make the 990 kilometers from Guerrero Negro [1] to Cabo San Lucas [2] in one long day of driving, with a stop for lunch in Loreto [3]. But if your goal is to experience a little more of the outdoors (and to have a safer drive), you’ll want to take more time.
The side trip out to the Vizcaíno Peninsula [4] takes several hours, depending on road conditions. Once there, you might spend a couple of days, up to a week, exploring the coastal towns.
Allow 3–4 days for a whale-watching adventure in Laguna Ojo de Liebre [5] or Laguna San Ignacio [6], since it can take several attempts to catch the right conditions and to see the whales up close. You can easily spend 2–3 days in and around San Ignacio [7]; add at least two more for a trip into the sierra [8].
Mulegé [9] and Bahía Concepción [10] offer enough activities to occupy visitors for a couple of weeks—or an entire season—including hikes to nearby prehistoric cave paintings, snorkeling, scuba diving, fishing, clamming, birding, and kayaking.
Links:
[1] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/guerrero-negro
[2] http://www.moon.com/destinations/baja-cabo/cabo/los-cabos/cabo-san-lucas
[3] http://www.moon.com/destinations/baja-cabo/loreto-and-vicinity/loreto
[4] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/vizcaino-peninsula
[5] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/guerrero-negro/sights
[6] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/san-ignacio-and-vicinity/laguna-san-ignacio
[7] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/san-ignacio-and-vicinity/san-ignacio
[8] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/san-ignacio-and-vicinity/sierra-de-san-francisco-rock-art
[9] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/mulege
[10] http://www.moon.com/destinations/baja-cabo/guerrero-negro-bahia-concepcion/mulege/bahia-concepcion