Complex sentence: In 1906 Crikvenica became officially a health resort and due to its favourable climate, in the space of just 16 years Crikvenica became the most important resort on the riviera.
Split into simpler sentences: In 1906 Crikvenica became officially a health resort. Due to its favourable climate, in the space of just 16 years Crikvenica became the most important resort on the riviera.