Dear Peter,
Were so glad youre coming to join us on Sunday. Here is how you can find us. Well have our picnic in the Peoples park. You know where that is, dont you? After you enter the park by the main gate, walk straight on till you come to a stream. Cross the stream and turn right. After walking for a while, youll come to a hill. Walk round to the other side of the hill. There youll see a lake. Well have our picnic there in the small woods by the lake. Im sure youll have no trouble finding us. Do come.