Paying for RVing or traveling

I do most of my RVing around FL. Travel by plane to visit friends &
relatives, who farther away. Either way I need to have money. I have CC (credit cards)and DC (debit cards). But,I keep my money in mutual funds, not at banks. So, I need some emergency way to get money, if the need arose. Traveler's Checks do not work like they used to. My CCs have large spending limits, but much smaller cash advances. Any ideas on how to carry more cash available with me.

You say you use a debit card, so you must have a bank acct?....why not set up a line of credit with your bank, then use online banking to transfer money from LOC to your bank acct if needed, then use ATM for cash. When you get home you can access you Mutual funds or whatever and payout the LOC .....make LOC big enough max to cover whatever emergency money you think you might need....you only pay interest on balance owing, and pay down any amount you choose......drawing cash on a c/c is very expensive compared to a LOC.....