a) being situated on the sea coast; the centre is in principle no more than two kilometres from the coast line,
b) climatic properties and air quality, which are monitored and support the health and recreation possibilities,
c) at least one doctor's practice
d) proper bathing water quality at a well-kept and guarded beach, which is monitored,
e) beach promenades, parks as well as beach or countryside paths sufficiently undisturbed by traffic, opportunities for games and sport.