Several oil companies, however, have been granted exploration rights by the government. Rainfall is confined to the winter months and averages only 3 inches 75 mm per year, but this may vary from almost nothing to double that amount. Public education is free for both boys and girls at the primary, intermediate, and secondary levels and is mandatory for all children aged 6 to As for activities, most of them are related to water, like they have an amazing water park, amazing islands where you can go kite surfing and surfing.