For the tripod, the main precaution is to keep salt from drying on it. Use it normally in the shallow water, then rinse it with fresh water as soon as possible after shooting. Pay extra attention to joints, bolts, and leg locks, since salt can collect there. When you get home, give it a thorough cleaning. If you want extra protection, you could slip sealed plastic tubing over the lower leg sections as a barrier.

For footwear, shallow water on the flats is commonly only a few inches deep, so simple waterproof footwear is usually enough. In cold conditions, lightweight plastic rain boots or other waterproof boots are the most practical choice. If it were warm, sandals or even barefoot could work, but for 5–15°C boots are the better option.

If packing space is tight, prioritize light, inexpensive waterproof boots over bulky options. The key issues are salt exposure and comfort in cold, shallow water.