Without slicing all the way through, cut slits vertically into each whole strawberry. Spread slices out to create strawberry fans; set aside.
Place salt in small dish. Rub rim of 8 glasses with lime wedges, then dip in salt. Set aside.
In pitcher, combine sliced strawberries, lime juice, sugar and jalapeño; muddle until strawberries are mashed and juicy. Stir in coconut water, tequila and Triple Sec until well blended.
Fill cocktail shaker with ice and one-quarter of the margarita mix. Shake until shaker is frosty and very cold. Repeat with three more batches.
Pour over salt-rimmed glasses filled with ice. Garnish each serving with strawberry fan, jalapeño slice and lime wheel.