Hi JIM, Happy New 2010!!!
Regarding your question about fishing these waters based on a DIY program, here's what i can provide,
the fishing during this time of the year and mid feb. , is based on the weather due to being our winter time for us (colfront season), we are still located at a tropical position and that means tropical species also, !!!!
fishing program for DIY
Weather & location: if you happen to be here when a coldfront is over us, you'll then have to make a program to fish the southern flats of Cancun, to be on the leeward side and find calmer winds, there's a nice flat to wade right below the last bridge heading south towards the Airport, you can take the Bus that reaches Wet & Wild water park, get off on the Punta Nizuc Bridge and fish the canals and pylons, it's there were you can hook up on Tarpon or Snook,,, if no luck, then head out to the bay side and here you'll see the flat, it's 2miles long up to 200yds wide,
Good weather days, Winds from E or S, you will want to plan on fishing the other way, North of Cancun, at Islablanca, you'll need a car for this, drive half way of the Peninsula and you'll get to where the dirt road seem's to end and you should then be at an open area where you can see both sides, ocean and lagoon,, park your car there (it's Safe ok.) you might want to do some google earth prior to coming to have a better idea of what it will be like, both places, land and water,,
once on the flat, head north where it's more protected by mangroves compared to other side that still gets hit by the wind and colder,, if going here plan on fishing a long day cause the flat is 8miles long up to 1mll. wide!!!!,
Species in the House:
Bonefish-Permit, Forget about it!!! even do the day is nice and sunny, water is still too cold for them, i don't even bother to target them now
Best chances will be, Cudas, Ladyfish, Snappers and Maybe Jacks,, the flats have been taking over the Cudas and Snappers!!!, so have your arsenal and gear loaded for them,, mostly clousers, deceivers, poppers and needle fish type flies will be key to success
closer to the mangroves, SNOOK!!! but also CROCS!!!!!!!!!!!, BE careful, it's always been better to go catch something and not have somenthing catch YOU!!!!
play it safe and have fun, a priced fish can, can cost you more than money,
hopefully this info serves you good and wish you tight-lines when here
Capt. RODMAN HUNTER