The Aegean has a short, wet spring when walking, hiking, and mountain biking are extremely enjoyable activities, because the weather is pleasant but not too hot.
( ( The Aegean ) ( ( has ( ( a ( short ( , ( wet spring ) ) ) ) ( when ( ( ( ( ( ( walking , ) hiking ) , ) and ) ( mountain biking ) ) ( ( ( are ( ( extremely enjoyable ) activities ) ) , ) ( because ( ( the weather ) ( is ( ( ( pleasant but ) not ) ( too hot ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Aegean)) (VP (VBZ has) (NP (NP (DT a) (JJ short) (, ,) (JJ wet) (NN spring)) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN walking)) (, ,) (NP (NN hiking)) (, ,) (CC and) (NP (NN mountain) (NN biking))) (VP (VBP are) (NP (ADJP (RB extremely) (JJ enjoyable)) (NNS activities)) (, ,) (SBAR (IN because) (S (NP (DT the) (NN weather)) (VP (VBZ is) (ADJP (ADJP (JJ pleasant)) (CC but) (RB not) (ADJP (RB too) (JJ hot))))))))))) (. .)))
Hiking during summer in the Aegean is not recommended because of the risk of overheating.
( ( Hiking ( during ( summer ( in ( the Aegean ) ) ) ) ) ( ( ( is not ) ( recommended ( because ( of ( ( the risk ) ( of overheating ) ) ) ) ) ) . ) )
(ROOT (S (S (VP (VBG Hiking) (PP (IN during) (NP (NP (NN summer)) (PP (IN in) (NP (DT the) (NNP Aegean))))))) (VP (VBZ is) (RB not) (VP (VBN recommended) (PP (RB because) (IN of) (NP (NP (DT the) (NN risk)) (PP (IN of) (NP (NN overheating))))))) (. .)))