IV-329 

 "cities" of 350,000 on weekends 1n the summer months. 



Perhaps the greatest recent chanqe in user group pressure results 

 from the tremendous growth of permanent residences constructed in 

 coastal and estuarine locations. Recreation amenities provided 

 by these areas 1s a Drime factor in this trend. Although growth 

 figures are not uniformly available, the growth of permanent and 

 "second" homes aDpears to be general throughout the Nation, parti - 

 cualrly in outlying "suburbs" tied to metropolitan job centers by 

 expanding transportation networks. This growth of permanent users 

 of the estuarine zone is further increased by the phenomenal expan- 

 sion of retirement communities in such areas as Florida, Texas, and 

 California. 



Figure IV. 4. 17 summarizes the projections of leisure time which con- 

 tribute heavily to the pressures discussed above. 



