like ▁Con cep ción , ▁the ▁other ▁vol cano ▁on ▁the ▁island , ▁M ader as ▁has ▁not ▁been ▁active ▁in ▁historical ▁times . ▁Its ▁cr ater ▁contains ▁a ▁cr ater ▁lake . ▁ ▁The ▁s lop es ▁of ▁M ader as ▁are ▁one ▁of ▁the ▁few ▁places ▁on ▁the ▁Pacific ▁side ▁of ▁Nic ar agua ▁where ▁cloud ▁forest ▁grows . ▁The ▁only ▁other ▁place ▁where ▁this ▁is ▁found ▁is ▁at ▁the ▁M omb ach o ▁vol cano . ▁Cloud ▁for ests ▁are ▁character ized ▁by ▁a ▁rich ▁plant ▁and ▁animal ▁life , ▁made ▁possible ▁by ▁the ▁high ▁levels ▁of ▁hum id ity ▁in ▁the ▁climate . ▁Pre histor ic ▁pet rog lyph s ▁have ▁been ▁found ▁at ▁the ▁M ader as ▁vol cano . ▁ ▁Cl im bing ▁to ▁the ▁top ▁of ▁the ▁vol cano ▁is ▁a ▁popular ▁tour ist ▁activity . ▁Tour ists ▁are ▁strongly ▁encourag ed ▁by ▁local ▁gu iding ▁companies ▁to ▁h ire ▁a ▁guide , ▁but ▁the ▁trail ▁from ▁the ▁common ▁starting ▁point ▁at ▁Fin ca ▁Mag dal ena ▁is ▁obvious ▁the ▁entire ▁way ▁to ▁the ▁top . ▁The ▁hi ke ▁to ▁the ▁top ▁of ▁the ▁cr ater ▁can ▁be ▁difficult , ▁with ▁ste ep ▁incl ines ▁that ▁get ▁mud dy ▁when ▁it ▁ra ins . ▁It ▁ra ins ▁often ▁on ▁O met e pe ▁Island , ▁so ▁a ▁sli pp ery ▁clim b ▁is ▁likely , ▁even ▁in ▁the ▁dry ▁season . ▁The ▁round ▁trip ▁hi ke ▁takes ▁between ▁ 6 ▁and ▁ 9 ▁hours ▁and ▁changes