Jim, we will be staying 6 nights/7 days in the park 3 at the lake, 1 at Old Faithful and 2 at Mammoth so we'll take in what we can. We are really looking forward to it. It will be early June though (6/3 - 6/9). Can I expect muddy and buggy condition then? I realize the potential for winter weather still exists but our kids end school at the end of May and we wanted to beat most of the high summer traffic. Thanks for your reply.