The canopy created can block the sun and stunt or kill many of the younger trees, adding to the fire hazard.

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"On the east coast, you can find the still-active Arenal volcano where you can zip line next to it through the jungle canopy as it puffs gaseous steam and molten lava, " Amerson said.

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Better security operators (like Meridian Global Consulting, Triple Canopy and Academi) establish armories in strategic ports, like Oman, where they can check in and check out their weapons.

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Those with a head for heights can keep following the river to the Iwokrama Centre, a river lodge and research centre where a canopy walkway gives visitors a new perspective on the rainforest.

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