Male cast members wore Hawaiian shirts and Bermuda shorts, female cast members wore long floral dresses. Most popular drink was Jungle Julep

Outdoor seating

Male cast members wore Hawaiian shirts and Bermuda shorts female cast members wore long floral dresses

Most popular drink was Jungle Julep

Sunkist I presume also made mint juleps that were served on the Mark Twain

From WED Disneyland Dictionary 1968:
Decorated with jungle shields and carvings, is an unusual refreshment center that serves jungle punch and citrus products from the Sunkist Growers Association.

1969 Menu speciality: Fruit Juice, Light Snacks

From Steve Birnbaum brings you the best of Disneyland 1982:
Along with the pineapple juice offered at the Tiki Juice Bar and the Tahitian Terrace punch, the Jungle Juleps served here- made of guava, orange, and lemon juice-make the list of the Magic Kingdom's most luscious libations. Lemonade, fresh-squeezed orange juice, frozen orange, lemon, or fruit juice bars, fresh lemon tarts, and buttermilk doughnuts round out the snack menu, and there are hot dogs for those who want something a bit more substantial. Presented by Sunkist Growers, Inc. Serves Breakfast, Lunch, Dinner, Snacks.