South Dakota charges a day use fee ($6) plus a fee for tent camping ($17); I opted to pay for an Annual Pass of $30 since I plan on doing more SD camping this year. The park had East and West areas, the tent sites (4) are only in the West side. As typical, the more scenic lakeside camping is for RV's, with flushing toilets and showers, but the trade off for privacy and seclusion at the tent site was worth it. Picnic tables have built in sun covers which were really great and with winds I didn't experience any bugs or mosquitoes. There is no tree cover so I enjoyed the night sky. The staff is friendly and helpful. There was only one trail, Otto Stream (no stream, no otters), which is about 1.5m trail thru restored prairie.