Research your destination. The department of tourism for your destination and the Internet provide a plethora of information about what is available in any state where you would like to go.
Dig deeper. After deciding on the vacation spot, contact them and have them detail just what is available for tourist with disabilities. If you need special facilities, ramps, transportation or medical supplies and hookups, make sure your hotels and other stops at your destination understand this and see what they can offer you.
Plan for any weather. Make sure you have hats, sumbrellas, sunscreen, rain gear and warm clothes, even when going on summer vacations. Weather can change quickly, and it might be harder to find an accessible shady spot, dry area or warm place should foul weather kick up unexpectedly.
Consider purchasing or leasing an all-terrain wheelchair. These chairs are made for sand, forested areas as well as surfaced trails and can handle water, weather and your gear. These chairs can be manual, electric and even solar powered.
Buy a wheelchair back pack. These packs make it so much easier to get around, store vacation souvenirs and carry personal items, while leaving your hands free to get around, cast a fishing line, shop and stroll.
Talk to a specialty travel agent. There are agencies that specialize in accessible vacations. They can ensure your trip will go smoothly by reserving supplies, accessible autos, helpers on location and by ensuring your destination will have ramps, accessible facilities and tours geared towards those with disadvantages.