
| Eldmar | 
 
	
 
                
                
              
            
            There is a prestige class called Horizon Walker, where one of the powers - Terrain Dominance (plane of water) allows the person to act completely normally underwater - cast spells, attack etc at no penalty. The divine spell Freedom of movement does likewise, but is cast on an individual not on ammunition. That is the only thing that I can think of that allows normal underwater actions.
 
	
 
     
     
     
 
                
                 
	
 