Hola Matt!
I was up there just after New Year and didn't have any problems at all.
Went with a few other guys from the Moto-club here in Medellin and found it to be intresting but not as beutiful as some other deserts.
Havent been to the top myself but we did some short trip around Cabo dela Vela and from there we were told its a full days ride
on bad roads/tracks to reach the point.
Dont know what border your going thru, but if you'll cross at the most northerly one I wouldn't recommend you to stay in Maico on the Colombian side.
During a short Visa-run to Venezuela I ended up staying there and for the first time, and probably the last in this beutiful country, I got a creepy feeling that this place was no good.
Also, and I dont want to exaggerate cause this is only information I was told by one! local, but the section between Cabo dela Vela in La Guajira and Parque Tayrona (Which is a very beutiful N.P. en route to Santa Marta)is best done in one go as road-robbery by Indians apparently has accured on this section.
I suggest that you do the bordercrossing as early as possible and head inland
for a bit as the borderarea incl. Maico is a little bit dodgy if you ask me.
Safety in all respect but most important IMHO is that you ask around for the roadconditions before heading up to the Peninsula so that the sandy roads hasn't turned in to a big mudhole.
After all, it's the rainyseason in Colombia right now but I dont have a clue if that effects this region aswell.
PS Is
coming up or are you still planning to go straight to Bogota? DS
/Dan