Will I have internet coverage in the Okavango Delta and Chobe National Park?

You must set expectations. You will have reliable 4G/LTE coverage in the main towns (Maun, Kasane, Gaborone).

• Okavango Delta: Most luxury lodges and safari camps have their own (slow) Wi-Fi, but there is no mobile signal in the deep delta.
• Chobe: You will have a good signal in Kasane town and at the park entrance. On the river cruise, the signal is strong. On a deep game drive, it will be intermittent. An eSIM is for the towns, not the deep bush (for which you need satellite).