I'm going to Washington in August to give Rainier a try. We will be getting to Washington on Saturday and attempting Rainier on Wednesday. We are planning a longish hike for Sunday with a small "walk" on Monday and Tuesday as a rest day. We are coming from NY and we will be staying in the North Cascades on Sunday and Monday night. How high should we go on Sunday to help us acclimatize for Rainier? I know a few days isn't going to do much.
A few of the hikes we looked at are between 6500-8600 feet. Should we be aiming higher- Something towards 10,000 feet? We are looking at cascade pass to sahale peak/arm, which gets up to 8680 ft. Any advice on what we should be aiming for?