We are taking Charlie on his first beach trip!We are all really excited..However, I am wondering if there are any tips I may get from you veterans? I know these babies can sunburn...he loves the water...we have a pool at home (he has a life vest)How about the matting and salt water? Any suggestions? Sunblock? Heat? Anything? He is 7 months old. Luckily we will be at a cottage on the beach so we can go back and forth. He is our first indoor dog so we are not sure what we are doing! Any suggestions will be greatly appreciated!!