leg cramps while snorkeling

[Dirk Diggler]

Raisins are marginal.

Your issues are water difficiency.  Drink a more water.

But if you dont want to consider more intact of water here's a better list of foods with higher potassium (which should be part of your diet any way)
Papaya
Apricots (fresh)
Avocado
Banana ***
Cantaloupe
Honeydew
Kiwi
Lima beans
Milk ***
Oranges and orange juice
Potatoes (can be reduced to moderate by soaking peeled, sliced potatoes overnight before cooking)
Prunes
Spinach
Tomatoes
Vegetable juice - I dont recommend because much of it is soldium based and low in nutritonal content, unless you "brew" it yourself.
Winter squash
Yogurt ***

Here's a marginal list:
Apple juice
Asparagus
Beets
Blackberries
Broccoli
Carrots
Cherries
Corn
Eggplant
Grapefruit
Green peas
Loose-leaf lettuce
Mushrooms, fresh
Onions
Peach
Pears
Pineapple
Raisins
Raspberries
Strawberries
Summer squash, including zucchini
Tangerines
Watermelon

Here's low list:
These foods give less electrolyte value per serving for people who need to increase their potassium levels.
Apples
Bell peppers
Blueberries
Cabbage
Cranberries
Cranberry juice
Cucumber
Fruit cocktail
Grapes
Green beans
Iceberg lettuce
Mandarin oranges, canned
Mushrooms
Peaches, canned
Pineapple, fresh
Plums

Meat-based sources other than milk and yougurt listed can also offer benefits.

Ideally, eat better and drink more water  =  way less cramps.