A fellow ActiveMSer (thanks Lynn!) turned me on to these. Could be an affordable way to get on the beach.
	
		
http://www.thesandpad.com/index.php
							
						
					
			
			
				The SandPad™ provides a wider base of stability than normal crutch, cane or walker tips to support a user's weight for easy travel without sinking into sand, grass, gravel or snow.