Complex sentence: It is a Mediterranean-like seaside town, seemingly with Italian-similar roots, filled with quaint restaurants, parasols hung over circular tables beneath trailing plants, wide cobbled roads, and the odd bit of ancient architecture.
Split into simpler sentences: It is a Mediterranean-like seaside town, which seems to have Italian-like roots. Its main features are quaint restaurants, parasols hung over circular tables beneath trailing plants, wide cobbled roads, and ancient architecture.