Yes, if your summer house or alternative address is within our delivery range. You can find the delivery ranges here.
You can change the shipping address on your customer account. Follow the how-to guide here. You will need to make the change before Friday March 26th at 11:59pm in order to get the Easter box.
Be aware that it is not possible to change address for only the Easter box - it will be for the subscription as a whole. You will therefore need to manually change the shipping address back after the Easter box.