PLEASE PREPARE! Malaria can sometimes be fatal and at best may make you regret that you survived. Medicines must be taken weeks BEFORE you come here. There are 4 different species of Malaria and humans can get them all from the bite of an infected female Anopheles mosquito. Illness and death from malaria are largely preventable - if you plan ahead.
While you are here you need to use a repellent spray early in the morning and any periods of darkness, especially at night. The Bartender at my beach hotel had Malaria 3 times before he was 25. Do not take chances!
I would suggest you buy repellent with 100% DEET.
During the rainy season the large lakes that appear in the road take up exactly the entire width of the road. Also they are only located where the vegetation is so dense, that you cannot actually walk along the sides or avoid walking in the water. Take good boots that dry quickly. Get used to it. It is the rainy season and you are going to get wet and stay that way. At least it is always warm!